{"id":"diazoxide","rwe":[],"_fda":{"id":"b8413ebc-f835-4c45-9524-91bda45bd35f","set_id":"0e745e85-9512-e360-e063-6394a90aebf1","openfda":{"unii":["2U8NRZ7P8L"],"route":["ORAL"],"rxcui":["2711548","2711556","2711559","2711562","2711565","2711568"],"spl_id":["b8413ebc-f835-4c45-9524-91bda45bd35f"],"brand_name":["VYKAT XR"],"spl_set_id":["0e745e85-9512-e360-e063-6394a90aebf1"],"package_ndc":["83860-025-01","83860-075-01","83860-150-01"],"product_ndc":["83860-025","83860-075","83860-150"],"generic_name":["DIAZOXIDE CHOLINE"],"product_type":["HUMAN PRESCRIPTION DRUG"],"substance_name":["DIAZOXIDE CHOLINE"],"manufacturer_name":["Soleno Therapeutics, Inc."],"application_number":["NDA216665"],"is_original_packager":[true]},"version":"2","pregnancy":["8.1 Pregnancy Risk Summary Available data from case reports with diazoxide use during pregnancy are insufficient to identify a drug-associated risk of major birth defects, miscarriage, or other adverse maternal outcomes. Adverse reactions, including hyperglycemia, alopecia, and hypertrichosis lanuginosa, have been reported in neonates exposed to diazoxide in utero prior to delivery (see Clinical Considerations ) . In animal reproduction studies, oral gavage administration of diazoxide choline to pregnant rats during organogenesis at dose exposures equal to the human exposure of 525 mg resulted in no malformations. Maternal and fetal toxicities were observed at a dose approximately equal to the maximum recommended human dose (MRHD) of 525 mg based on AUC (see Data ) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the US general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Diazoxide crosses the placenta and has been detected in cord blood. Based on adverse reactions reported in adults, in utero exposure of the infant prior to delivery may produce fetal or neonatal hyperbilirubinemia, thrombocytopenia, altered carbohydrate metabolism, and possibly other adverse reactions. Monitor infants who were exposed to diazoxide in utero for adverse reactions and treat accordingly. Alopecia and hypertrichosis lanuginosa have occurred in a small number of infants whose mothers received oral diazoxide during the last 19 to 60 days of pregnancy. Abnormal hair growth was first noted at the age of one week and persisted when the infants were last seen at the ages of 5 months to one year. An infant born to a mother who was treated with oral diazoxide, 150 mg daily for 47 days prior to delivery, developed hyperglycemia which resolved after a 6-hour insulin infusion. Because there was an inappropriately low plasma insulin concentration for the degree of hyperglycemia, it was considered compatible with transplacental transfer of diazoxide causing inhibition of release of insulin from the neonatal pancreas. Labor or Delivery Intravenous administration of diazoxide during labor may cause cessation of uterine contractions, which may require administration of oxytocic agents to reinstate labor. However, this has not been reported with diazoxide when administered orally. Use caution in administering VYKAT XR during labor. Data Animal Data Diazoxide choline was administered orally to pregnant rats during the period of organogenesis at doses of 40, 100, and 160 mg/kg/day (0.3, 0.6, and 1.2 times the MRHD of 525 mg based on AUC). No malformations were observed; however, decreased fetal body weights, delayed skeletal ossification, and increased fetal resorptions were observed at 160 mg/kg/day (a dose approximately equal to the MRHD based on AUC) which was a maternally toxic dose. In a study in which rabbits were administered diazoxide intravenously, evidence of skeletal and cardiac teratogenic effects was noted at unknown multiples of the MRHD for diazoxide choline."],"overdosage":["10 OVERDOSAGE An overdosage of VYKAT XR may cause marked hyperglycemia, which may be associated with ketoacidosis [see Warnings and Precautions (5.1) ] . No specific antidotes for VYKAT XR are known. Monitor ketones in patients with severe hyperglycemia following overdose and consider insulin treatment if necessary. Treat severe hyperglycemia associated with ketoacidosis with prompt insulin administration and restoration of fluid and electrolyte balance. Because of VYKAT XR’s long half-life (approximately 106 hours) in patients with PWS, the symptoms of overdosage (hyperglycemia, with or without ketoacidosis) require prolonged surveillance for periods up to three weeks or until blood sugar levels stabilize within the patient’s normal range. Consider contacting a Poison Help line (1-800-222-1222) or a medical toxicologist for overdosage management recommendations for VYKAT XR."],"description":["11 DESCRIPTION VYKAT XR contains diazoxide choline. Diazoxide choline is very slightly soluble to soluble in solvents dichloromethane, tetrahydrofuran, acetonitrile, and methanol and practically insoluble in solvents methyl tert -butyl ether. The pKa is 8.44 ± 0.01 Diazoxide choline is 7-Chloro-3-methyl-1λ6, 2,4-benzothiadiazin-2-ide 1,1-dioxide 2- hydroxyethyl(trimethyl)azanium. The empirical formula is C 8 H 6 ClN 2 O 2 S•C 5 H 14 NO and the molecular weight is 333.83 g/mole. The structural formula is: VYKAT XR is for oral administration and is available as extended-release tablets in the following strengths: 25 mg tablet contains diazoxide choline 25 mg, equivalent to 17.2 mg diazoxide; 75 mg tablet contains diazoxide choline 75 mg, equivalent to 51.6 mg diazoxide; and 150 mg tablet contains diazoxide choline 150 mg, equivalent to 103.2 mg diazoxide. Each tablet contains the following inactive ingredients: carnauba wax, colloidal silicon dioxide, dibasic calcium phosphate dihydrate, hypromellose, magnesium stearate, polyethylene oxide, silicified microcrystalline cellulose, talc, titanium dioxide, and triacetin. Chemical Structure"],"how_supplied":["16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied VYKAT XR is supplied as follows: Strength Description Package Configuration NDC Number 25 mg diazoxide choline White, capsule-shaped tablets, debossed with \"S-25\" on one side 30-count bottles 83860-025-01 75 mg diazoxide choline White, round, standard convex tablets, debossed with \"S-75\" on one side 30-count bottles 83860-075-01 150 mg diazoxide choline White, oval-shaped tablets, debossed with “S-150” on one side. 30-count bottles 83860-150-01 Storage and Handling Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15° and 30°C (59° and 86°F) [see USP Controlled Room Temperature]. Keep in tightly closed container. Protect from humidity. Do not remove desiccant."],"spl_medguide":["This Medication Guide has been approved by the U.S. Food and Drug Administration. Issued: 3/2025 MEDICATION GUIDE VYKAT ™ XR (vye kat ex ar) (diazoxide choline) extended-release tablets, for oral use What is the most important information I should know about VYKAT XR? VYKAT XR may cause serious side effects, including: High blood sugar levels (hyperglycemia). Hyperglycemia is common during treatment with VYKAT XR and can also be severe. Hyperglycemia can lead to a condition called diabetic ketoacidosis (increased ketones in the blood) in some people who take VYKAT XR. Diabetic ketoacidosis is a serious condition that needs to be treated in a hospital and can be life-threatening. Your healthcare provider will: check your blood sugar levels before you start VYKAT XR, at least 1 time every week for the first 2 weeks of treatment, then at least 1 time every 4 weeks and as needed during treatment. check your blood sugar more often during the first few weeks of treatment if you have an increased chance of getting hyperglycemia. check your HbA1c, which is another measurement of blood sugar control, before starting treatment, then 1 time every 3 months and as needed during treatment. If you get hyperglycemia during treatment with VYKAT XR, your healthcare provider may: give you medicines to treat hyperglycemia or change your dose if you already take them change your dose, temporarily stop, or permanently stop VYKAT XR Tell your healthcare provider if you get any of the following signs and symptoms: hyperglycemia feel very thirsty need to urinate more often than usual have higher amounts of urine than usual feel more hungry than usual weight loss diabetic ketoacidosis nausea vomiting stomach-area (abdominal) pain feel weak or very tired trouble breathing Too much fluid in your body (fluid overload). Swelling in the body (edema) from too much fluid is common during treatment with VYKAT XR and can also be severe. Your healthcare provider may decrease your dose or temporarily stop VYKAT XR if you get fluid overload. Tell your healthcare provider if you have trouble breathing or get any other signs or symptoms of fluid overload such as swelling of your legs, ankles, or feet, or unusual swelling anywhere in your body. What is VYKAT XR? VYKAT XR is a prescription medicine used to treat extreme hunger, constant thoughts about food, and constant urge to eat that cannot be satisfied with food (hyperphagia) in adults and children 4 years of age and older with Prader-Willi syndrome (PWS). It is not known if VYKAT XR is safe and effective in children under 4 years of age. Who should not take VYKAT XR? Do not take VYKAT XR if you are allergic to diazoxide, any ingredients in VYKAT XR, or medicines called thiazides. See the end of this Medication Guide for a complete list of ingredients in VYKAT XR. Before taking VYKAT XR, tell your healthcare provider about all of your medical conditions, including if you: have diabetes or prediabetes are sick plan to have surgery drink alcohol very often are dehydrated or have lost a lot of body fluid have heart problems or a history of swelling in your legs or other parts of your body have liver or kidney problems re pregnant, or plan to become pregnant. VYKAT XR may harm your unborn baby. Tell your healthcare provider right away if you become pregnant during treatment with VYKAT XR. are breastfeeding or plan to breastfeed. VYKAT XR passes into your breast milk, and it is not known if it can harm your baby. Tell your healthcare provider if you plan to breastfeed during treatment with VYKAT XR. Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Taking VYKAT XR with certain other medicines may affect the way VYKAT XR or the other medicine works and may increase your risk of side effects. Do not change your dose or stop any medicines you take or start any new medicines without talking to your healthcare provider first during treatment with VYKAT XR. Know the medicines you take. Keep a list of them to show your healthcare provider and pharmacist when you get a new medicine. Especially tell your healthcare provider if you take: medicines to lower blood sugar growth hormones corticosteroids diuretics (water pills) phenytoin warfarin How should I take VYKAT XR? Take VYKAT XR exactly as your healthcare provider tells you to take it. Your healthcare provider will decide how much VYKAT XR you will take and may slowly increase your dose when you first start taking VYKAT XR. Take VYKAT XR by mouth 1 time per day with or without food. Swallow VYKAT XR tablets whole. Do not split, crush, or chew the tablets. You should not miss a dose of VYKAT XR. If you miss a dose of VYKAT XR, take the missed dose as soon as you remember. Do not take 2 doses of VYKAT XR at the same time to make up for a missed dose. If you missed a dose of VYKAT XR and did not remember to take another dose, call your healthcare provider to discuss what you should do next. The dose of VYKAT XR is not the same as diazoxide oral suspension. Do not change between VYKAT XR and diazoxide oral suspension products. If you take too much VYKAT XR, call your healthcare provider or Poison Help Line at 1-800-222-1222 or go to the nearest hospital emergency room right away. What are the possible side effects of VYKAT XR? See \"What is the most important information I should know about VYKAT XR?\" The most common side effects of VYKAT XR also include: increased hair growth all over the body rash These are not all of the possible side effects of VYKAT XR. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. How should I store VYKAT XR? Store VYKAT XR at room temperature between 68°F to 77°F (20°C to 25°C). Close the bottle tightly after each dose. Keep VYKAT XR tablets dry (protect from humidity). The bottle contains a desiccant to help keep the tablets dry. Keep the desiccant in the VYKAT XR bottle. Keep VYKAT XR and all medicines out of the reach of children. General information about the safe and effective use of VYKAT XR. Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use VYKAT XR for a condition for which it was not prescribed. Do not give VYKAT XR to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about VYKAT XR that is written for health professionals. What are the ingredients in VYKAT XR? Active ingredient: diazoxide choline Inactive ingredients: carnauba wax, colloidal silicon dioxide, dibasic calcium phosphate dihydrate, hypromellose magnesium stearate, polyethylene oxide, silicified microcrystalline cellulose, talc, titanium dioxide, and triacetin. Manufactured for: Soleno Therapeutics, Inc., 100 Marine Parkway, Suite 400, Redwood City, CA 94065 For more information, call 1-833-765-3661."],"geriatric_use":["8.5 Geriatric Use Clinical studies of VYKAT XR did not include any subjects 65 years of age and older to determine whether they respond differently from younger adult subjects."],"pediatric_use":["8.4 Pediatric Use The safety and effectiveness of VYKAT XR have been established for the treatment of hyperphagia in pediatric patients 4 years of age and older with PWS. Use of VYKAT XR for this indiction is supported by efficacy data from an adequate and well-controlled study that included pediatric patients with PWS [see Clinical Studies (14) ] and safety data from additional studies that included pediatric patients with PWS [see Adverse Reactions (6) ] , and the information on this use is described throughout the labeling. The safety and effectiveness of VYKAT XR have not been established for the treatment of hyperphagia in pediatric patients with PWS less than 4 years of age. Adverse Reactions in Pediatric Patients in an Unapproved Population The following postmarketing adverse reactions have been reported with the use of other diazoxide products for the treatment of hyperinsulinemic hypoglycemia, an unapproved population [see Adverse Reactions (6) ]: Pulmonary hypertension in pediatric patients less than 6 months of age, including neonates. Transient cataracts in association with hyperosmolar coma in a pediatric patient that subsided with correction of the hyperosmolarity. Development of abnormal facial features with chronic use in pediatric patients. VYKAT XR is not approved and is not recommended for the treatment of hyperinsulinemic hypoglycemia. Juvenile Animal Toxicity Data Diazoxide choline was orally administered at doses of 29, 58, and 145 mg/kg/day to juvenile rats from weaning (postnatal day 21) through adulthood (postnatal day 91). Reduced body weight and body weight gains, correlated with decreased food consumption, occurred at doses ≥ 58 mg/kg/day. Delayed sexual maturation occurred in males at ≥ 58 mg/kg/day and in females at all doses. Decreased motor activity was observed in males at ≥ 58 mg/kg/day, but no effect was observed on learning and memory at any dose in both males and females. The no adverse effect level (NOAEL) was 29 mg/kg/day, which results in exposures less than the clinical exposure at the maximum recommended human dose (MRHD) of 525 mg based on AUC."],"effective_time":"20250326","clinical_studies":["14 CLINICAL STUDIES The efficacy of VYKAT XR for the treatment of hyperphagia in adults and pediatric patients ages 4 years and older with PWS was established in a 16-week, double-blind, placebo-controlled, randomized withdrawal study period (Study 2-RWP; NCT03714373) that followed an open-label study period of VYKAT XR. During Study 2-RWP, 77 patients with hyperphagia and PWS were randomized in a 1:1 ratio to continue their current oral dosage using a weight-based dosage regimen of VYKAT XR or placebo [see Dosage and Adminstration (2.2) ] . Prior to participating in Study 2-RWP, patients received double-blind and/or open-label VYKAT XR for a mean duration of 3.3 years (range 2.5 to 4.5 years; Study 1 and Study 2-OLE). Results from Study 2-RWP are presented below. Demographic and baseline disease characteristics were similar for the VYKAT XR and placebo groups. The mean age was 14.9 years of age (range 7 to 29 years of age). Most of the participants were White (86%), 7% were Black or African American, and 8% were of multiple races. The majority of participants were non-Hispanic (91%) and female (56%). The primary efficacy endpoint was the Change from Baseline in the Hyperphagia Questionnaire for Clinical Trials (HQ-CT) Total Score at Week 16. The HQ-CT is a 9-item, observer-reported outcome measure that assesses a range of hyperphagic and food-related behaviors during the prior 2 weeks. An item score of 0 indicates an absence of behaviors, with a score of 4 indicating the most frequent or severe behaviors. The HQ-CT Total Score may range from 0 to 36, with higher scores indicating greater overall severity of hyperphagic and food-related behaviors. At the end of the 16-week randomized withdrawal study period, there was statistically significant worsening of hyperphagia in the placebo group relative to the VYKAT XR group, as assessed by the HQ- CT Total Score (see Table 5 ). Table 5: Study 2-RWP HQ-CT Total Score, Least Square Mean Change from Baseline to the End of the Randomized Withdrawal Period (Week 16) in Patients with Hyperphagia and PWS Treatment Group Number of Patients Mean Baseline Score (SD) LS Mean Change from Baseline (SE) LS Mean Difference VYKAT XR - placebo (95% CI) CI, confidence interval; HQ-CT, Hyperphagia Questionnaire for Clinical Trials; LS Mean, least squares mean; RWP, randomized withdrawal period; SD, standard deviation; SE, standard error VYKAT XR 38 9.0 (6.3) 2.6 (1.1) -5.0 (-8.1, -1.8) Placebo 39 8.1 (5.1) 7.6 (1.1)"],"pharmacodynamics":["12.2 Pharmacodynamics VYKAT XR resulted in a reduction in fasting plasma insulin from baseline through 1 year of treatment. Diazoxide increases blood glucose, due primarily to an inhibition of insulin release from the pancreas. Other pharmacodynamic effects of VYKAT XR include increased uric acid, renin secretion and IgG concentrations, and decreased cortisol secretion."],"pharmacokinetics":["12.3 Pharmacokinetics Absorption Following oral administration, diazoxide choline is hydrolyzed to diazoxide prior to absorption. Peak diazoxide concentrations occur after 16 hours. VYKAT XR is expected to reach steady state after 7 days. Effect of Food Following administration of 150 mg diazoxide choline to healthy subjects, the C max increased by 39% and AUC inf was unchanged with a high-fat meal, compared to fasted conditions. The median T max was 12 hours in the fasted state, and 8 hours in the fed state. Distribution The volume of distribution of diazoxide following oral administration is about 44.9 L. Diazoxide is extensively bound (91% to 93%) to plasma proteins (primarily human albumin), and crosses the blood-brain barrier. Elimination Metabolism Diazoxide is mainly metabolized by CYP1A2 and to a minor extent by CYP3A4. Diazoxide is metabolized by oxidation or sulfate conjugation at the methyl group resulting in two inactive metabolites. Following long term administration in patients with PWS, only metabolite M1(3-hydroxymethyl-7-chloro-1,2,4- benzothiadiazine-1,1-dioxide) is detectable in circulation. Excretion Diazoxide is excreted almost exclusively in urine as free or conjugated compound. In humans, following administration of radiolabeled diazoxide, 85 to 92% of the total dose was recovered in urine, with about 31% eliminated as unchanged drug. About 2% of the dose is eliminated in the feces. The terminal half-life following single-dose administration in healthy subjects was 28.7 to 32.4 hours. In patients with PWS, the estimated terminal half-life is 106 hours. Specific Populations Pediatric Patients Approximately 72% of the patients with PWS were under 17 years of age at enrollment. There were no clinically relevant differences in pharmacokinetics in these participants compared to those observed in adult participants. Male and Female Patients No sex-related differences in pharmacokinetics have been observed in clinical trials of VYKAT XR in patients with PWS who have hyperphagia. Patients with Renal or Hepatic Impairment VYKAT XR has not been studied in patients with renal or hepatic impairment [see Use in Specific Populations (8.6 , 8.7) ] . Drug Interaction Studies Drugs That Inhibit CYP1A2 VYKAT XR is metabolized by CYP1A2 and coadministration with a strong CYP1A2 inhibitor may increase exposure of diazoxide and decrease concentrations of diazoxide metabolites. In a clinical study with fluvoxamine (a strong CYP1A2 inhibitor), coadministration with fluvoxamine at an inhibitory dose increased single dose diazoxide C max by 17.5% and AUC 0-inf by 60% compared to the same parameter measured on single dose in the absence of fluvoxamine co-administration [see Drug Interactions (7) ] . Strong CYP3A4 Inhibitor Physiology-based pharmacokinetic model-based analysis suggests that concomitant use of VYKAT XR with itraconazole (a strong CYP3A4 inhibitor) may increase the AUC inf of VYKAT XR by 1.1 to 2-fold, compared to VYKAT XR alone. Itraconazole did not appreciably affect the C max of VYKAT XR [see Drug Interactions (7) ] . Strong CYP3A4 Inducers Physiology-based pharmacokinetic model-based analysis suggests that concomitant use of VYKAT XR with rifampin (a strong CYP3A4 inducer and moderate CYP1A2 inducer) may decrease the C max and AUC inf of VYKAT XR by 14% to 30% and 40% to 70%, respectively, compared to VYKAT XR alone [see Drug Interactions (7) ] . Drugs that Alter Gastric pH Use of VYKAT XR with gastric pH adjusting-drugs is not expected to affect the pharmacokinetics of diazoxide. Based on population pharmacokinetic modeling, use of VYKAT XR with gastric pH adjusting drugs did not significantly affect relative bioavailability or apparent clearance of diazoxide. Protein Binding Displacement VYKAT XR may also displace bilirubin bound to serum protein, thus resulting in higher blood levels of bilirubin. In Vitro Studies Enzyme systems: Diazoxide choline is an inhibitor of CYP1A2. It is not an inhibitor of CYP2B6, 2C19, 2C8, 2C9, 2D6 or 3A4. It does not induce CYP1A2, CYP2B6 or CYP3A4 at the therapeutic dose range. Transporter systems: Diazoxide choline is a substrate for OAT1, OAT3, and BCRP. It is an inhibitor of OAT1/3. It is not an inhibitor of P-gp, BCRP, MATE1/2-K, OATP1B1/3, OCT1/2 at the therapeutic dose range."],"adverse_reactions":["6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling: Hyperglycemia [see Warnings and Precautions (5.1) ] Risk of Fluid Overload [see Warnings and Precautions (5.2) ] Adverse Reactions from Clinical Studies of VYKAT XR in Patients with PWS Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In the clinical study development program for treatment of hyperphagia in patients aged 4 years and older with PWS, a total of 125 patients received at least 1 dose of VYKAT XR. Patients received dosages of VYKAT XR up to 5.8 mg/kg/day (up to a maximum dosage of 525 mg/day) for up to 4.86 years (median: 3.0 years) in the following studies: Study 1: 13-week, randomized, double-blind, placebo-controlled, parallel-arm study in which 126 patients were randomized in a 2:1 ratio to VYKAT XR or placebo and received at least one dose of VYKAT XR. Study 2-OLE: A long-term, open-label, maintenance treatment period in 115 patients (mean duration 2.6 years; maximum duration 4.3 years) who had previously been enrolled in Study 1. Study 2-RWP: A 16-week, double-blind, placebo-controlled, randomized withdrawal treatment period, in which 77 patients who had completed Study 1 and Study 2-OLE were randomized in a 1:1 ratio to VYKAT XR or placebo [see Clinical Studies (14) ] . Study 3: A long-term, open-label, maintenance study in 77 patients who had completed Study 1 and Study 2-OLE. Adverse reactions leading to discontinuation in VYKAT XR-treated patients included aggression, diabetes mellitus, fluid retention, hirsutism, hyperglycemia, lower respiratory tract infection, peripheral edema, pulmonary edema, and papular rash. The primary safety analyses are based on Study 1. The most common adverse reactions (10% or more and at least 2% greater than in placebo) in Study 1 were hypertrichosis, edema, hyperglycemia, and rash. Table 3 presents adverse reactions that occurred in at least 5% of patients in Study 1 receiving VYKAT XR and 2% more frequently in VYKAT XR-treated patients than placebo. Table 3: Adverse Reactions Occurring in ≥5% of Patients with PWS Receiving VYKAT XR and at Least 2% Greater than Placebo in Study 1 Adverse Reaction VYKAT XR (N=84) Placebo (N=42) Hypertrichosis 36% 14% Edema Edema includes peripheral edema, periorbital edema, swelling face, pulmonary edema, and peripheral swelling. 27% 12% Hyperglycemia Hyperglycemia includes type 2 diabetes mellitus. 17% 5% Rash Rash includes contact dermatitis, erythema multiforme, maculo-papular rash, papular rash, and urticaria. 12% 2% Pyrexia 6% 0% Arthralgia 5% 2% Influenza 5% 2% Nasopharyngitis 5% 2% In Study 2-RWP, the adverse reactions that occurred most frequently (at least 5%) and to a greater extent than placebo included: Immune System Disorders: Seasonal allergy Investigations: Increased weight Nervous System Disorders: Hyperphagia, anxiety, affect lability, anger, compulsive hoarding, suicidal ideation Respiratory Disorders: Streptococcal pharyngitis, upper respiratory infection Skin and Subcutaneous Tissue Disorders: Hirsutism Erythema multiforme was reported in one subject in Study 1. One subject in Study 3 experienced a serious adverse reaction of diabetic ketoacidosis. Adverse Reactions from Clinical Trials or Postmarketing Experience of Diazoxide in An Unapproved Population The following adverse reactions associated with use of diazoxide for an unapproved population have been identified in clinical studies or post-marketing reports. Because some of these reactions were reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Immune System Disorders: Hypersensitivity Investigations: Increased serum uric acid, transient neutropenia, thrombocytopenia, decreased hemoglobin/hematocrit, eosinophilia Respiratory Disorders: Pulmonary hypertension Special Senses: Cataracts Musculoskeletal and Connective Tissue Disorders: Abnormal facial features Most common adverse reactions (incidence ≥10% and at least 2% greater than in placebo) are hypertrichosis, edema, hyperglycemia, and rash. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Soleno Therapeutics, Inc. at 1-833-765-3661 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch."],"contraindications":["4 CONTRAINDICATIONS VYKAT XR is contraindicated in patients with known hypersensitivity to diazoxide, other components of VYKAT XR, or to thiazides. Erythema multiforme has been reported with VYKAT XR [see Adverse Reactions (6) ] . Known hypersensitivity to diazoxide, other components of VYKAT XR, or to thiazides. ( 4 )"],"drug_interactions":["7 DRUG INTERACTIONS Table 4 displays clinically significant drug interactions with VYKAT XR. Table 4: Clinically Significant Drug Interactions with VYKAT XR Strong CYP1A2 Inhibitors See www.fda.gov/CYPandTransporterInteractingDrugs for examples of strong CYP1A2 and CYP3A4 inhibitors, sensitive CYP1A2 substrates, and dual strong CYP3A4 / moderate 1A2 inducers. Prevention or Management Reduce the dosage of VYKAT XR when concomitantly used with strong inhibitors of CYP1A2 [see Dosage and Administration (2.4) ] . Mechanism and Clinical Effect(s) VYKAT XR is a CYP1A2 substrate. Concomitant use of VYKAT XR with strong CYP1A2 inhibitors increases exposure of diazoxide, which may increase the frequency and/or severity of adverse reactions from VYKAT XR [see Clinical Pharmacology (12.3) ] . CYP1A2 Substrates Prevention or Management Concomitant use of VYKAT XR with CYP1A2 substrates is not recommended. Mechanism and Clinical Effect(s) VYKAT XR is an inhibitor of CYP1A2. Concomitant use of VYKAT XR with CYP1A2 substrates increases exposure of these substrates. This may increase the frequency and/or severity of adverse reactions from such substrates. Strong CYP3A4 Inhibitors Prevention or Management Monitor the frequency and severity of adverse reactions from VYKAT XR. A dosage reduction of VYKAT XR may be needed when used concomitantly with strong CYP3A4 inhibitors. Mechanism and Clinical Effect(s) Concomitant use of VYKAT XR with strong CYP3A4 inhibitors increases exposure of diazoxide, which may increase the frequency and/or severity of adverse reactions from VYKAT XR [see Clinical Pharmacology (12.3) ] . Dual Strong CYP3A4 / Moderate 1A2 Inducers Prevention or Management Concomitant use of VYKAT XR with dual strong CYP3A4/moderate CYP1A2 inducers is not recommended. Mechanism and Clinical Effect(s) VYKAT XR is a substrate of CYP3A4 and CYP1A2. Concomitant use of VYKAT XR with strong CYP3A4/moderate 1A2 inducers may decrease exposure of VYKAT XR. This may decrease the efficacy of VYKAT XR [see Clinical Pharmacology (12.3) ] . Drugs Highly Bound to Protein Prevention or Management Monitor international normalized ratio (INR) in patients who use coumarin or its derivatives concomitantly with VYKAT XR. Dosage modification of coumarin or its derivatives may be needed when used concomitantly with VYKAT XR. Monitor diphenylhydantoin serum levels when VYKAT XR is used concomitantly with diphenylhydantoin. Dosage modification of diphenylhydantoin may be needed when used concomitantly with VYKAT XR. Mechanism and Clinical Effect(s) Diazoxide is highly bound to serum proteins. Diazoxide may displace other drugs which are also highly bound to protein resulting in higher or lower blood levels of the concomitantly used drugs. The impact of protein binding displacement is expected to be clinically important for drugs with narrow therapeutic range such as coumarin or its derivatives and diphenylhydantoin. Protein binding displacement may result in an increased risk of adverse reactions due to higher blood levels of coumarin or its derivative or loss of efficacy due to lower exposures of diphenylhydantoin. Thiazide or Other Diuretics Prevention or Management Monitor for signs and symptoms of hyperglycemia [see Warnings and Precautions (5.1) ] and hyperuricemia when VYKAT XR is used concomitantly with thiazides or other diuretics. Dosage adjustment of VYKAT XR or diuretics may be needed when VYKAT XR is concomitantly used with diuretics. Mechanism and Clinical Effect(s) Both diazoxide and thiazides or other diuretics may produce hyperglycemia and hyperuricemia. The concomitant use of VYKAT XR with thiazides or other diuretics may potentiate the hyperglycemic and hyperuricemic effects of diazoxide [see Adverse Reactions (6) and Clinical Pharmacology (12.2) ] . Strong CYP1A2 Inhibitors: Reduce VYKAT XR dosage. ( 2.4 , 7 ) CYP1A2 Substrates: Concomitant use with VYKAT XR is not recommended. ( 7 ) See full prescribing information for additional clinically significant drug interactions. ( 7 )"],"how_supplied_table":["<table width=\"85%\" ID=\"hssh\"><col width=\"20%\" align=\"left\" valign=\"middle\"/><col width=\"35%\" align=\"center\" valign=\"middle\"/><col width=\"30%\" align=\"center\" valign=\"middle\"/><col width=\"15%\" align=\"center\" valign=\"middle\"/><thead><tr styleCode=\"Botrule\"><th styleCode=\"Lrule Rrule\" align=\"center\" valign=\"bottom\">Strength</th><th styleCode=\"Rrule\" valign=\"bottom\">Description</th><th styleCode=\"Rrule\" valign=\"bottom\">Package Configuration</th><th styleCode=\"Rrule\" valign=\"bottom\">NDC Number</th></tr></thead><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">25 mg diazoxide choline</td><td styleCode=\"Rrule\" align=\"left\">White, capsule-shaped tablets, debossed with &quot;S-25&quot; on one side</td><td styleCode=\"Rrule\" align=\"left\">30-count bottles</td><td styleCode=\"Rrule\" align=\"left\">83860-025-01</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">75 mg diazoxide choline</td><td styleCode=\"Rrule\" align=\"left\">White, round, standard convex tablets, debossed with &quot;S-75&quot; on one side</td><td styleCode=\"Rrule\" align=\"left\">30-count bottles</td><td styleCode=\"Rrule\" align=\"left\">83860-075-01</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">150 mg diazoxide choline</td><td styleCode=\"Rrule\" align=\"left\">White, oval-shaped tablets, debossed with &#x201C;S-150&#x201D; on one side.</td><td styleCode=\"Rrule\" align=\"left\">30-count bottles</td><td styleCode=\"Rrule\" align=\"left\">83860-150-01</td></tr></tbody></table>"],"spl_medguide_table":["<table width=\"100%\" ID=\"MEDGUIDE\"><col width=\"2%\" align=\"left\" valign=\"top\"/><col width=\"38%\" align=\"left\" valign=\"top\"/><col width=\"30%\" align=\"left\" valign=\"top\"/><col width=\"30%\" align=\"right\" valign=\"top\"/><tfoot><tr><td colspan=\"3\" align=\"left\" valign=\"top\">This Medication Guide has been approved by the U.S. Food and Drug Administration.</td><td align=\"right\" valign=\"top\">Issued: 3/2025</td></tr></tfoot><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\" align=\"center\"><content styleCode=\"bold\">MEDICATION GUIDE VYKAT<sup>&#x2122;</sup> XR (vye kat ex ar) (diazoxide choline) extended-release tablets, for oral use</content></td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">What is the most important information I should know about VYKAT XR? VYKAT XR may cause serious side effects, including:</content><list><item><content styleCode=\"bold\">High blood sugar levels (hyperglycemia).</content> Hyperglycemia is common during treatment with VYKAT XR and can also be severe. Hyperglycemia can lead to a condition called diabetic ketoacidosis (increased ketones in the blood) in some people who take VYKAT XR. Diabetic ketoacidosis is a serious condition that needs to be treated in a hospital and can be life-threatening. Your healthcare provider will: <list><item>check your blood sugar levels before you start VYKAT XR, at least 1 time every week for the first 2 weeks of treatment, then at least 1 time every 4 weeks and as needed during treatment.</item><item>check your blood sugar more often during the first few weeks of treatment if you have an increased chance of getting hyperglycemia.</item><item>check your HbA1c, which is another measurement of blood sugar control, before starting treatment, then 1 time every 3 months and as needed during treatment.</item></list>If you get hyperglycemia during treatment with VYKAT XR, your healthcare provider may: <list><item>give you medicines to treat hyperglycemia or change your dose if you already take them</item><item>change your dose, temporarily stop, or permanently stop VYKAT XR</item></list>Tell your healthcare provider if you get any of the following signs and symptoms: <list><item><content styleCode=\"bold\">hyperglycemia</content><list><item>feel very thirsty</item><item>need to urinate more often than usual</item><item>have higher amounts of urine than usual</item><item>feel more hungry than usual</item><item>weight loss</item></list></item><item><content styleCode=\"bold\">diabetic ketoacidosis</content><list><item>nausea</item><item>vomiting</item><item>stomach-area (abdominal) pain</item><item>feel weak or very tired</item><item>trouble breathing</item></list></item></list></item><item><content styleCode=\"bold\">Too much fluid in your body (fluid overload).</content> Swelling in the body (edema) from too much fluid is common during treatment with VYKAT XR and can also be severe. Your healthcare provider may decrease your dose or temporarily stop VYKAT XR if you get fluid overload. Tell your healthcare provider if you have trouble breathing or get any other signs or symptoms of fluid overload such as swelling of your legs, ankles, or feet, or unusual swelling anywhere in your body.</item></list></td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">What is VYKAT XR?</content> VYKAT XR is a prescription medicine used to treat extreme hunger, constant thoughts about food, and constant urge to eat that cannot be satisfied with food (hyperphagia) in adults and children 4 years of age and older with Prader-Willi syndrome (PWS). It is not known if VYKAT XR is safe and effective in children under 4 years of age.</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">Who should not take VYKAT XR?</content> Do not take VYKAT XR if you are allergic to diazoxide, any ingredients in VYKAT XR, or medicines called thiazides. See the end of this Medication Guide for a complete list of ingredients in VYKAT XR.</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">Before taking VYKAT XR, tell your healthcare provider about all of your medical conditions, including if you:</content><list><item>have diabetes or prediabetes</item><item>are sick</item><item>plan to have surgery</item><item>drink alcohol very often</item><item>are dehydrated or have lost a lot of body fluid</item><item>have heart problems or a history of swelling in your legs or other parts of your body</item><item>have liver or kidney problems</item><item>re pregnant, or plan to become pregnant. VYKAT XR may harm your unborn baby. Tell your healthcare provider right away if you become pregnant during treatment with VYKAT XR.</item><item>are breastfeeding or plan to breastfeed. VYKAT XR passes into your breast milk, and it is not known if it can harm your baby. Tell your healthcare provider if you plan to breastfeed during treatment with VYKAT XR.</item></list>Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Taking VYKAT XR with certain other medicines may affect the way VYKAT XR or the other medicine works and may increase your risk of side effects. <content styleCode=\"bold\">Do not</content> change your dose or stop any medicines you take or start any new medicines without talking to your healthcare provider first during treatment with VYKAT XR. Know the medicines you take. Keep a list of them to show your healthcare provider and pharmacist when you get a new medicine. <content styleCode=\"bold\">Especially tell your healthcare provider if you take:</content><list><item>medicines to lower blood sugar</item><item>growth hormones</item><item>corticosteroids</item><item>diuretics (water pills)</item><item>phenytoin</item><item>warfarin</item></list></td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">How should I take VYKAT XR?</content><list><item>Take VYKAT XR exactly as your healthcare provider tells you to take it. Your healthcare provider will decide how much VYKAT XR you will take and may slowly increase your dose when you first start taking VYKAT XR.</item><item>Take VYKAT XR by mouth 1 time per day with or without food.</item><item>Swallow VYKAT XR tablets whole. <content styleCode=\"bold\">Do not</content> split, crush, or chew the tablets.</item><item>You should not miss a dose of VYKAT XR. If you miss a dose of VYKAT XR, take the missed dose as soon as you remember. Do not take 2 doses of VYKAT XR at the same time to make up for a missed dose. If you missed a dose of VYKAT XR and did not remember to take another dose, call your healthcare provider to discuss what you should do next.</item><item><content styleCode=\"bold\">The dose of VYKAT XR is not the same as diazoxide oral suspension. Do not change</content> between VYKAT XR and diazoxide oral suspension products.</item></list>If you take too much VYKAT XR, call your healthcare provider or Poison Help Line at 1-800-222-1222 or go to the nearest hospital emergency room right away.</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">What are the possible side effects of VYKAT XR?</content><list><item><content styleCode=\"bold\">See &quot;What is the most important information I should know about VYKAT XR?&quot;</content></item></list><content styleCode=\"bold\">The most common side effects of VYKAT XR also include:</content><list><item>increased hair growth all over the body</item><item>rash</item></list>These are not all of the possible side effects of VYKAT XR. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">How should I store VYKAT XR?</content><list listType=\"unordered\" styleCode=\"disc\"><item>Store VYKAT XR at room temperature between 68&#xB0;F to 77&#xB0;F (20&#xB0;C to 25&#xB0;C).</item><item>Close the bottle tightly after each dose.</item><item>Keep VYKAT XR tablets dry (protect from humidity).</item><item>The bottle contains a desiccant to help keep the tablets dry. Keep the desiccant in the VYKAT XR bottle.</item></list><content styleCode=\"bold\">Keep VYKAT XR and all medicines out of the reach of children.</content></td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">General information about the safe and effective use of VYKAT XR.</content> Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use VYKAT XR for a condition for which it was not prescribed. Do not give VYKAT XR to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about VYKAT XR that is written for health professionals.</td></tr><tr><td styleCode=\"Lrule Rrule\" colspan=\"4\"><content styleCode=\"bold\">What are the ingredients in VYKAT XR?</content> Active ingredient: diazoxide choline Inactive ingredients: carnauba wax, colloidal silicon dioxide, dibasic calcium phosphate dihydrate, hypromellose magnesium stearate, polyethylene oxide, silicified microcrystalline cellulose, talc, titanium dioxide, and triacetin.  Manufactured for: Soleno Therapeutics, Inc., 100 Marine Parkway, Suite 400, Redwood City, CA 94065 For more information, call 1-833-765-3661.</td></tr></tbody></table>"],"mechanism_of_action":["12.1 Mechanism of Action The exact mechanism of action of diazoxide choline in the treatment of hyperphagia in patients 4 years of age and older with Prader-Willi syndrome (PWS) is unknown."],"clinical_pharmacology":["12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action The exact mechanism of action of diazoxide choline in the treatment of hyperphagia in patients 4 years of age and older with Prader-Willi syndrome (PWS) is unknown. 12.2 Pharmacodynamics VYKAT XR resulted in a reduction in fasting plasma insulin from baseline through 1 year of treatment. Diazoxide increases blood glucose, due primarily to an inhibition of insulin release from the pancreas. Other pharmacodynamic effects of VYKAT XR include increased uric acid, renin secretion and IgG concentrations, and decreased cortisol secretion. 12.3 Pharmacokinetics Absorption Following oral administration, diazoxide choline is hydrolyzed to diazoxide prior to absorption. Peak diazoxide concentrations occur after 16 hours. VYKAT XR is expected to reach steady state after 7 days. Effect of Food Following administration of 150 mg diazoxide choline to healthy subjects, the C max increased by 39% and AUC inf was unchanged with a high-fat meal, compared to fasted conditions. The median T max was 12 hours in the fasted state, and 8 hours in the fed state. Distribution The volume of distribution of diazoxide following oral administration is about 44.9 L. Diazoxide is extensively bound (91% to 93%) to plasma proteins (primarily human albumin), and crosses the blood-brain barrier. Elimination Metabolism Diazoxide is mainly metabolized by CYP1A2 and to a minor extent by CYP3A4. Diazoxide is metabolized by oxidation or sulfate conjugation at the methyl group resulting in two inactive metabolites. Following long term administration in patients with PWS, only metabolite M1(3-hydroxymethyl-7-chloro-1,2,4- benzothiadiazine-1,1-dioxide) is detectable in circulation. Excretion Diazoxide is excreted almost exclusively in urine as free or conjugated compound. In humans, following administration of radiolabeled diazoxide, 85 to 92% of the total dose was recovered in urine, with about 31% eliminated as unchanged drug. About 2% of the dose is eliminated in the feces. The terminal half-life following single-dose administration in healthy subjects was 28.7 to 32.4 hours. In patients with PWS, the estimated terminal half-life is 106 hours. Specific Populations Pediatric Patients Approximately 72% of the patients with PWS were under 17 years of age at enrollment. There were no clinically relevant differences in pharmacokinetics in these participants compared to those observed in adult participants. Male and Female Patients No sex-related differences in pharmacokinetics have been observed in clinical trials of VYKAT XR in patients with PWS who have hyperphagia. Patients with Renal or Hepatic Impairment VYKAT XR has not been studied in patients with renal or hepatic impairment [see Use in Specific Populations (8.6 , 8.7) ] . Drug Interaction Studies Drugs That Inhibit CYP1A2 VYKAT XR is metabolized by CYP1A2 and coadministration with a strong CYP1A2 inhibitor may increase exposure of diazoxide and decrease concentrations of diazoxide metabolites. In a clinical study with fluvoxamine (a strong CYP1A2 inhibitor), coadministration with fluvoxamine at an inhibitory dose increased single dose diazoxide C max by 17.5% and AUC 0-inf by 60% compared to the same parameter measured on single dose in the absence of fluvoxamine co-administration [see Drug Interactions (7) ] . Strong CYP3A4 Inhibitor Physiology-based pharmacokinetic model-based analysis suggests that concomitant use of VYKAT XR with itraconazole (a strong CYP3A4 inhibitor) may increase the AUC inf of VYKAT XR by 1.1 to 2-fold, compared to VYKAT XR alone. Itraconazole did not appreciably affect the C max of VYKAT XR [see Drug Interactions (7) ] . Strong CYP3A4 Inducers Physiology-based pharmacokinetic model-based analysis suggests that concomitant use of VYKAT XR with rifampin (a strong CYP3A4 inducer and moderate CYP1A2 inducer) may decrease the C max and AUC inf of VYKAT XR by 14% to 30% and 40% to 70%, respectively, compared to VYKAT XR alone [see Drug Interactions (7) ] . Drugs that Alter Gastric pH Use of VYKAT XR with gastric pH adjusting-drugs is not expected to affect the pharmacokinetics of diazoxide. Based on population pharmacokinetic modeling, use of VYKAT XR with gastric pH adjusting drugs did not significantly affect relative bioavailability or apparent clearance of diazoxide. Protein Binding Displacement VYKAT XR may also displace bilirubin bound to serum protein, thus resulting in higher blood levels of bilirubin. In Vitro Studies Enzyme systems: Diazoxide choline is an inhibitor of CYP1A2. It is not an inhibitor of CYP2B6, 2C19, 2C8, 2C9, 2D6 or 3A4. It does not induce CYP1A2, CYP2B6 or CYP3A4 at the therapeutic dose range. Transporter systems: Diazoxide choline is a substrate for OAT1, OAT3, and BCRP. It is an inhibitor of OAT1/3. It is not an inhibitor of P-gp, BCRP, MATE1/2-K, OATP1B1/3, OCT1/2 at the therapeutic dose range."],"indications_and_usage":["1 INDICATIONS AND USAGE VYKAT XR is indicated for the treatment of hyperphagia in adults and pediatric patients 4 years of age and older with Prader-Willi syndrome (PWS). VYKAT XR is indicated for the treatment of hyperphagia in adults and pediatric patients 4 years of age and older with Prader-Willi syndrome (PWS). ( 1 )"],"warnings_and_cautions":["5 WARNINGS AND PRECAUTIONS Hyperglycemia : Hyperglycemia, including diabetic ketoacidosis, has been reported. During treatment, monitor fasting glucose and HbA1c. Monitor fasting glucose more frequently during first few weeks of treatment in patients with risk factors for hyperglycemia. ( 2.3 , 5.1 ) Risk of Fluid Overload : Edema, including severe reactions associated with fluid overload, has been reported. Monitor for signs or symptoms of edema or fluid overload. ( 2.3 , 5.2 ) 5.1 Hyperglycemia VYKAT XR increases blood glucose, due primarily to an inhibition of insulin release from the pancreas. Hyperglycemia, including severe adverse reactions associated with diabetic ketoacidosis, occurred in VYKAT XR-treated patients during clinical trials [see Adverse Reactions (6) ] . Precipitating conditions for diabetic ketoacidosis may include reduction in the dosages of concomitant antihyperglycemic medications, increase in the dosages of concomitant growth hormone, intercurrent illness, surgery, volume depletion or alcohol abuse. Signs and symptoms of ketoacidosis include nausea, vomiting, abdominal pain, generalized malaise and shortness of breath. Before initiating VYKAT XR, test fasting plasma glucose (FPG) and HbA1c; optimize blood glucose in patients who have hyperglycemia. After initiating treatment with VYKAT XR, regularly monitor fasting glucose (FPG or fasting blood glucose) and HbA1c [see Dosage and Administration (2.3) ] . Monitor fasting glucose more frequently for the first few weeks of treatment with VYKAT XR in patients with risk factors for hyperglycemia, such as obesity, elevated FPG, HbA1c at the upper limit of normal or above, concomitant use of growth hormone, or concomitant use of systemic corticosteroids. Advise patients of the signs and symptoms of hyperglycemia (e.g., excessive thirst, urinating more often than usual or higher amount of urine than usual, or increased appetite with weight loss). If a patient experiences hyperglycemia after initiating treatment with VYKAT XR, monitor fasting glucose as clinically indicated, and at least twice weekly until fasting glucose decreases to normal levels. Consider monitoring ketones in patients with worsening hyperglycemia. If hyperglycemia is treated with anti-hyperglycemic medication during VYKAT XR treatment, continue monitoring fasting glucose at least once a week for 8 weeks, followed by once every 2 weeks and as clinically indicated. Consider consultation with a healthcare provider with expertise in the treatment of hyperglycemia and counsel patients on lifestyle changes. Based on the severity of the hyperglycemia, VYKAT XR may require dosage interruption, reduction, or discontinuation in order to avoid progression to ketoacidosis [see Dosage and Administration (2.3) ] . 5.2 Risk of Fluid Overload Edema, including general, localized, and peripheral edema, occurred in 27% of VYKAT XR-treated patients versus 12% of placebo-treated patients in the placebo-controlled trial with treatment-naïve subjects (Study 1). Severe adverse reactions associated with fluid overload, including pulmonary edema, were reported in VYKAT XR-treated patients during clinical trials [see Adverse Reactions (6) ] . The antidiuretic property of diazoxide may lead to significant fluid retention, which may precipitate congestive heart failure in patients with compromised cardiac reserve. VYKAT XR has not been studied in patients with compromised cardiac reserve and should be used with caution in these patients. Monitor for signs or symptoms of edema or fluid overload and consider appropriate clinical management, which may include VYKAT XR dosage reduction or treatment interruption, if clinically significant [see Dosage and Administration (2.3) ] ."],"clinical_studies_table":["<table width=\"75%\" ID=\"T05\"><caption>Table 5: Study 2-RWP HQ-CT Total Score, Least Square Mean Change from Baseline to the End of the Randomized Withdrawal Period (Week 16) in Patients with Hyperphagia and PWS</caption><col width=\"20%\" align=\"center\" valign=\"middle\"/><col width=\"20%\" align=\"center\" valign=\"middle\"/><col width=\"20%\" align=\"center\" valign=\"middle\"/><col width=\"20%\" align=\"center\" valign=\"middle\"/><col width=\"20%\" align=\"center\" valign=\"middle\"/><thead><tr styleCode=\"Botrule\"><th styleCode=\"Lrule Rrule\" valign=\"bottom\">Treatment Group</th><th styleCode=\"Rrule\" valign=\"bottom\">Number of Patients</th><th styleCode=\"Rrule\" valign=\"bottom\">Mean Baseline Score (SD)</th><th styleCode=\"Rrule\" valign=\"bottom\">LS Mean Change from Baseline (SE)</th><th styleCode=\"Rrule\" valign=\"bottom\">LS Mean Difference<footnote ID=\"table_5_footnote1\">VYKAT XR - placebo</footnote> (95% CI)</th></tr></thead><tfoot><tr><td align=\"left\" colspan=\"5\">CI, confidence interval; HQ-CT, Hyperphagia Questionnaire for Clinical Trials; LS Mean, least squares mean; RWP, randomized withdrawal period; SD, standard deviation; SE, standard error</td></tr></tfoot><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">VYKAT XR</td><td styleCode=\"Rrule\">38</td><td styleCode=\"Rrule\">9.0 (6.3)</td><td styleCode=\"Rrule\">2.6 (1.1)</td><td styleCode=\"Rrule Botrule\" rowspan=\"2\">-5.0 (-8.1, -1.8)</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Placebo</td><td styleCode=\"Rrule\">39</td><td styleCode=\"Rrule\">8.1 (5.1)</td><td styleCode=\"Rrule Botrule\">7.6 (1.1)</td></tr></tbody></table>"],"nonclinical_toxicology":["13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Carcinogenicity studies have not been performed with diazoxide choline. Mutagenesis Diazoxide choline was not mutagenic in the in vitro bacterial reverse mutation assay (Ames test) and in the mouse lymphoma assay. Diazoxide choline was not clastogenic in the in vivo rat micronucleus assay. Impairment of Fertility Diazoxide choline was orally administered to male and female rats at doses of 58, 116, and 232 mg/kg/day (1, 2, and 4 times the maximum recommended human dose (MRHD) on a mg/m 2 basis). Females were treated two weeks prior to mating and continuing through conception and implantation and males were treated for four weeks prior to mating continuing for 35 days after mating. No effects on male or female fertility parameters were observed. Decreases in the mean number of corpora lutea, implantation sites, and live embryos occurred at 4 times the MRHD on a mg/m 2 basis. 13.2 Animal Toxicology and/or Pharmacology Cataracts were observed in dogs given repeated daily oral doses of diazoxide of approximately 40 mg/kg/day for one month. The lenticular changes resembled those which occur experimentally in animals with increased blood glucose levels."],"adverse_reactions_table":["<table width=\"75%\" ID=\"T03\"><caption>Table 3: Adverse Reactions Occurring in &#x2265;5% of Patients with PWS Receiving VYKAT XR and at Least 2% Greater than Placebo in Study 1</caption><col width=\"50%\" align=\"left\" valign=\"middle\"/><col width=\"25%\" align=\"center\" valign=\"middle\"/><col width=\"25%\" align=\"center\" valign=\"middle\"/><thead><tr styleCode=\"Botrule\"><th styleCode=\"Lrule Rrule\" align=\"center\" valign=\"bottom\">Adverse Reaction</th><th styleCode=\"Rrule\" valign=\"bottom\">VYKAT XR (N=84)</th><th styleCode=\"Rrule\" valign=\"bottom\">Placebo (N=42)</th></tr></thead><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Hypertrichosis</td><td styleCode=\"Rrule\">36%</td><td styleCode=\"Rrule\">14%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Edema<footnote ID=\"table_3_footnote1\">Edema includes peripheral edema, periorbital edema, swelling face, pulmonary edema, and peripheral swelling.</footnote></td><td styleCode=\"Rrule\">27%</td><td styleCode=\"Rrule\">12%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Hyperglycemia<footnote ID=\"table_3_footnote2\">Hyperglycemia includes type 2 diabetes mellitus.</footnote></td><td styleCode=\"Rrule\">17%</td><td styleCode=\"Rrule\">5%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Rash<footnote ID=\"table_3_footnote3\">Rash includes contact dermatitis, erythema multiforme, maculo-papular rash, papular rash, and urticaria.</footnote></td><td styleCode=\"Rrule\">12%</td><td styleCode=\"Rrule\">2%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Pyrexia</td><td styleCode=\"Rrule\">6%</td><td styleCode=\"Rrule\">0%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Arthralgia</td><td styleCode=\"Rrule\">5%</td><td styleCode=\"Rrule\">2%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Influenza</td><td styleCode=\"Rrule\">5%</td><td styleCode=\"Rrule\">2%</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">Nasopharyngitis</td><td styleCode=\"Rrule\">5%</td><td styleCode=\"Rrule\">2%</td></tr></tbody></table>"],"drug_interactions_table":["<table width=\"75%\" ID=\"T04\"><caption>Table 4: Clinically Significant Drug Interactions with VYKAT XR</caption><col width=\"25%\" align=\"right\" valign=\"middle\"/><col width=\"75%\" align=\"left\" valign=\"middle\"/><thead><tr><th styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"Bold\">Strong CYP1A2 Inhibitors<footnote ID=\"table_4_footnote1\">See www.fda.gov/CYPandTransporterInteractingDrugs for examples of strong CYP1A2 and CYP3A4 inhibitors, sensitive CYP1A2 substrates, and dual strong CYP3A4 / moderate 1A2 inducers.</footnote></content></th></tr></thead><tbody><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Reduce the dosage of VYKAT XR when concomitantly used with strong inhibitors of CYP1A2 <content styleCode=\"italics\">[see <linkHtml href=\"#S2.4\">Dosage and Administration (2.4)</linkHtml>]</content>.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">VYKAT XR is a CYP1A2 substrate. Concomitant use of VYKAT XR with strong CYP1A2 inhibitors increases exposure of diazoxide, which may increase the frequency and/or severity of adverse reactions from VYKAT XR <content styleCode=\"italics\">[see <linkHtml href=\"#S12.3\">Clinical Pharmacology (12.3)</linkHtml>]</content>.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"bold\">CYP1A2 Substrates<footnoteRef IDREF=\"table_4_footnote1\"/></content></td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Concomitant use of VYKAT XR with CYP1A2 substrates is not recommended.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">VYKAT XR is an inhibitor of CYP1A2. Concomitant use of VYKAT XR with CYP1A2 substrates increases exposure of these substrates. This may increase the frequency and/or severity of adverse reactions from such substrates.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"bold\">Strong CYP3A4 Inhibitors<footnoteRef IDREF=\"table_4_footnote1\"/></content></td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Monitor the frequency and severity of adverse reactions from VYKAT XR. A dosage reduction of VYKAT XR may be needed when used concomitantly with strong CYP3A4 inhibitors.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">Concomitant use of VYKAT XR with strong CYP3A4 inhibitors increases exposure of diazoxide, which may increase the frequency and/or severity of adverse reactions from VYKAT XR <content styleCode=\"italics\">[see <linkHtml href=\"#S12.3\">Clinical Pharmacology (12.3)</linkHtml>]</content>.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"bold\">Dual Strong CYP3A4 / Moderate 1A2 Inducers<footnoteRef IDREF=\"table_4_footnote1\"/></content></td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Concomitant use of VYKAT XR with dual strong CYP3A4/moderate CYP1A2 inducers is not recommended.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">VYKAT XR is a substrate of CYP3A4 and CYP1A2. Concomitant use of VYKAT XR with strong CYP3A4/moderate 1A2 inducers may decrease exposure of VYKAT XR. This may decrease the efficacy of VYKAT XR <content styleCode=\"italics\">[see <linkHtml href=\"#S12.3\">Clinical Pharmacology (12.3)</linkHtml>]</content>.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"bold\">Drugs Highly Bound to Protein</content></td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Monitor international normalized ratio (INR) in patients who use coumarin or its derivatives concomitantly with VYKAT XR. Dosage modification of coumarin or its derivatives may be needed when used concomitantly with VYKAT XR.  Monitor diphenylhydantoin serum levels when VYKAT XR is used concomitantly with diphenylhydantoin. Dosage modification of diphenylhydantoin may be needed when used concomitantly with VYKAT XR.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">Diazoxide is highly bound to serum proteins.  Diazoxide may displace other drugs which are also highly bound to protein resulting in higher or lower blood levels of the concomitantly used drugs. The impact of protein binding displacement is expected to be clinically important for drugs with narrow therapeutic range such as coumarin or its derivatives and diphenylhydantoin. Protein binding displacement may result in an increased risk of adverse reactions due to higher blood levels of coumarin or its derivative or loss of efficacy due to lower exposures of diphenylhydantoin.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\" align=\"left\" colspan=\"2\"><content styleCode=\"bold\">Thiazide or Other Diuretics</content></td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Prevention or Management</content></td><td styleCode=\"Botrule Rrule\">Monitor for signs and symptoms of hyperglycemia <content styleCode=\"italics\">[see <linkHtml href=\"#S5.1\">Warnings and Precautions (5.1)</linkHtml>]</content> and hyperuricemia when VYKAT XR is used concomitantly with thiazides or other diuretics. Dosage adjustment of VYKAT XR or diuretics may be needed when VYKAT XR is concomitantly used with diuretics.</td></tr><tr><td styleCode=\"Lrule Botrule Rrule\"><content styleCode=\"italics\">Mechanism and Clinical Effect(s)</content></td><td styleCode=\"Botrule Rrule\">Both diazoxide and thiazides or other diuretics may produce hyperglycemia and hyperuricemia. The concomitant use of VYKAT XR with thiazides or other diuretics may potentiate the hyperglycemic and hyperuricemic effects of diazoxide <content styleCode=\"italics\">[see <linkHtml href=\"#S6\">Adverse Reactions (6)</linkHtml> and <linkHtml href=\"#S12.2\">Clinical Pharmacology (12.2)</linkHtml>]</content>.</td></tr></tbody></table>"],"information_for_patients":["17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide). Administration Instructions Advise patients to swallow tablets whole and not to split, crush, or chew VYKAT XR [see Dosage and Administration (2.2) ] . Hyperglycemia Advise the patient or caregiver that VYKAT XR can cause hyperglycemia, sometimes leading to diabetic ketoacidosis, and that the patient will have monitoring of blood glucose before and during VYKAT XR treatment. Advise patients or caregivers on the signs and symptoms of hyperglycemia (e.g., excessive thirst, urinating more often than usual or higher amount of urine than usual, or increased appetite with weight loss) and ketoacidosis (e.g., nausea, vomiting, abdominal pain, generalized malaise and shortness of breath) and to contact their healthcare provider if these signs or symptoms occur [see Warnings and Precautions (5.1) ] . Risk of Fluid Overload Advise the patient or caregiver that VYKAT XR may cause edema, including severe adverse reactions associated with fluid overload. Advise patients or caregivers on the signs and symptoms of edema and to contact their healthcare provider if signs or symptoms of edema occur [see Warnings and Precautions (5.2) ] . Manufactured for: Soleno Therapeutics, Inc. 100 Marine Parkway, Suite 400 Redwood City, CA 94065 © 2025 Soleno Therapeutics, Inc. All rights reserved."],"dosage_and_administration":["2 DOSAGE AND ADMINISTRATION Prior to initiation, test fasting plasma glucose and HbA1c; optimize blood glucose in patients who have hyperglycemia. ( 2.1 ) Do not substitute with diazoxide oral suspension. ( 2.1 ) Administer orally once daily. ( 2.2 ) Recommended starting dosage and titration schedule is based on patient’s body weight. ( 2.2 ) Weight Starting Dosage Titration Dosage Titration Dosage Target Maintenance Dose Weeks 1 and 2 Weeks 3 and 4 Weeks 5 and 6 20 to <30 kg 25 mg 50 mg 75 mg 100 mg 30 to <40 kg 75 mg 150 mg 150 mg 150 mg 40 to <65 kg 75 mg 150 mg 225 mg 225 mg 65 to <100 kg 150 mg 225 mg 300 mg 375 mg 100 to <135 kg 150 mg 300 mg 375 mg 450 mg ≥135 kg 150 mg 300 mg 450 mg 525 mg The maximum recommended dosage is 5.8 mg/kg/day or 525 mg per day. ( 2.2 ) Interrupt VYKAT XR or reduce dosage for clinically significant elevations in fasting glucose or HbA1c; consider dosage reduction or interruption for clinically significant fluid overload. ( 2.3 ) See full prescribing information for VYKAT XR dosage modifications due to drug interactions ( 2.4 ) Following dosage interruption or a missed dose of 7 days or more, re-titrate according to Table 1 or Table 2 . ( 2.5 ) 2.1 Important Recommendations Prior to VYKAT XR Initiation Laboratory Testing Prior to VYKAT XR Initiation Prior to initiating treatment with VYKAT XR, test fasting plasma glucose (FPG) and HbA1c and optimize blood glucose in patients who have hyperglycemia [see Warnings and Precautions (5.1) ] . For fasting glucose and HbA1c monitoring recommendations during VYKAT XR treatment and for dosage modifications based on results, see Dosage and Administration (2.3) . Important Information Regarding Substitution Do not substitute VYKAT XR with diazoxide oral suspension because the pharmacokinetic profiles are different [see Clinical Pharmacology (12.3) ] . 2.2 Dosage and Administration Recommendations Administer VYKAT XR orally with or without food once daily [see Clinical Pharmacology (12.3) ] . Swallow tablets whole. Do not split, crush, or chew the extended-release tablets because doing so may compromise the extended-release characteristics, efficacy, or safety of VYKAT XR. The recommended oral dosage of VYKAT XR is based on body weight. The recommended starting dosage and titration schedule of VYKAT XR are shown in Table 1 . Table 1: Recommended Starting Dosage and Titration Regimen in Adults and Pediatric Patients 4 Years of Age and Older Weight Recommended Once Daily Dosage Starting Dosage Titration Dosage Titration Dosage Target Maintenance Dose Weeks 1 and 2 Weeks 3 and 4 Weeks 5 and 6 20 kg to <30 kg 25 mg 50 mg 75 mg 100 mg 30 kg to <40 kg 75 mg 150 mg 150 mg 150 mg 40 kg to <65 kg 75 mg 150 mg 225 mg 225 mg 65 kg to <100 kg 150 mg 225 mg 300 mg 375 mg 100 kg to <135 kg 150 mg 300 mg 375 mg 450 mg ≥135 kg 150 mg 300 mg 450 mg 525 mg The maximum recommended dosage of VYKAT XR is 5.8 mg/kg/day or 525 mg per day. Dosages above 5.8 mg/kg/day or 525 mg per day have not been evaluated in patients with PWS. 2.3 Monitoring and Dosage Modifications Due to Adverse Reactions Elevations in Fasting Glucose or HbA1c After initiating treatment with VYKAT XR, monitor: Fasting glucose (FPG or fasting blood glucose) at least once every week for the first 2 weeks, then at least once every 4 weeks, and as clinically indicated. HbA1c every 3 months and as clinically indicated. Monitor fasting glucose more frequently during the first few weeks of VYKAT XR treatment in patients with risk factors for hyperglycemia. If clinically significant elevations in fasting glucose of HbA1c occur during treatment, temporarily interrupt VYKAT XR or reduce the dosage until glycemic parameters are appropriately managed. Consider initiation or adjustment of standard antidiabetic therapy(ies). If clinically significant glucose elevations are noted during titration, titrate over a longer duration and/or to a lower dosage [see Warnings and Precautions (5.1) ] . Fluid Overload Monitor for signs or symptoms of edema or fluid overload. Consider dosage reduction or temporary dosage interruption in the event of clinically significant fluid overload. If clinically significat fluid overload is noted during titration, titrate over a longer duration and/or to a lower dosage [see Warnings and Precautions (5.2) ] . Titration After Resolution of Fluid Overload or Elevation in Fasting Glucose or HbA1c If fluid overload or elevations in fasting glucose or HbA1c resolve after a dosage reduction: For patients weighing less than 30 kg, titrate the dosage in increments of no more than 25 mg every 2 weeks or titrate over longer duration to a maximum dosage of 5.8 mg/kg/day. For patients weighing greater than or equal to 30 kg, titrate the dosage in increments of no more than 75 mg every 2 weeks or titrate over longer duration to a maximum dosage of 5.8 mg/kg/day. For recommendations on resuming VYKAT XR after dosage interruption, see Dosage and Administration (2.5) . 2.4 Dosage Modifications for Concomitant Use with Strong CYP1A2 Inhibitors VYKAT XR dosage modifications for concomitant use with strong CYP1A2 inhibitors are shown in Table 2 [see Drug Interactions (7) ] . Table 2: VYKAT XR Dosage Modifications for Concomitant Use with Strong CYP1A2 Inhibitors Weight VYKAT XR Recommended Once Daily Dosage Starting Dosage Titration Dosage Titration Dosage Target Maintenance Dose Weeks 1 and 2 Weeks 3 and 4 Weeks 5 and 6 20 to <30 kg 25 mg 25 mg 50 mg 75 mg 30 to <40 kg 50 mg 100 mg 100 mg 100 mg 40 to <65 kg 50 mg 100 mg 150 mg 150 mg 65 to <100 kg 100 mg 150 mg 200 mg 250 mg 100 to <135 kg 100 mg 200 mg 250 mg 300 mg ≥135 kg 100 mg 200 mg 300 mg 325 mg Based on clinical response, VYKAT XR may be titrated to a maximum recommended dosage of 3.6 mg/kg/day. The VYKAT XR daily dosage should not exceed 325 mg per day. No dosage modification is recommended when VYKAT XR is concomitantly used with moderate CYP1A2 inhibitors. 2.5 Recommendations Regarding Dosage Interruption, Missed Dose, or Discontinuation of Treatment Following a dosage interruption or missed dose of: Less than 7 days, resume VYKAT XR at the previous dosage 7 days or more, re-titrate VYKAT XR according to Table 1 or 2 , as appropriate [see Dosage and Administration (2.2 , 2.4) ] Treatment with VYKAT XR can be discontinued without tapering."],"spl_product_data_elements":["VYKAT XR diazoxide choline diazoxide choline diazoxide S25 VYKAT XR diazoxide choline diazoxide choline diazoxide S75 VYKAT XR diazoxide choline diazoxide choline diazoxide S150"],"dosage_forms_and_strengths":["3 DOSAGE FORMS AND STRENGTHS Extended-release tablets: VYKAT XR 25­mg of diazoxide choline: white, capsule-shaped, film-coated, waxed tablets, debossed with S-25 on one side. VYKAT XR 75 mg of diazoxide choline: white, round, standard convex-shaped, film-coated, waxed tablets, debossed with S-75 on one side. VYKAT XR 150 mg of diazoxide choline: white, oval-shaped, film-coated, waxed tablets, debossed with S-150 on one side. Extended-release tablets: 25 mg, 75 mg, and 150 mg of diazoxide choline. ( 3 )"],"use_in_specific_populations":["8 USE IN SPECIFIC POPULATIONS Renal Impairment or Hepatic Impairment: Use is not recommended. ( 8.6 , 8.7 ) 8.1 Pregnancy Risk Summary Available data from case reports with diazoxide use during pregnancy are insufficient to identify a drug-associated risk of major birth defects, miscarriage, or other adverse maternal outcomes. Adverse reactions, including hyperglycemia, alopecia, and hypertrichosis lanuginosa, have been reported in neonates exposed to diazoxide in utero prior to delivery (see Clinical Considerations ) . In animal reproduction studies, oral gavage administration of diazoxide choline to pregnant rats during organogenesis at dose exposures equal to the human exposure of 525 mg resulted in no malformations. Maternal and fetal toxicities were observed at a dose approximately equal to the maximum recommended human dose (MRHD) of 525 mg based on AUC (see Data ) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the US general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Diazoxide crosses the placenta and has been detected in cord blood. Based on adverse reactions reported in adults, in utero exposure of the infant prior to delivery may produce fetal or neonatal hyperbilirubinemia, thrombocytopenia, altered carbohydrate metabolism, and possibly other adverse reactions. Monitor infants who were exposed to diazoxide in utero for adverse reactions and treat accordingly. Alopecia and hypertrichosis lanuginosa have occurred in a small number of infants whose mothers received oral diazoxide during the last 19 to 60 days of pregnancy. Abnormal hair growth was first noted at the age of one week and persisted when the infants were last seen at the ages of 5 months to one year. An infant born to a mother who was treated with oral diazoxide, 150 mg daily for 47 days prior to delivery, developed hyperglycemia which resolved after a 6-hour insulin infusion. Because there was an inappropriately low plasma insulin concentration for the degree of hyperglycemia, it was considered compatible with transplacental transfer of diazoxide causing inhibition of release of insulin from the neonatal pancreas. Labor or Delivery Intravenous administration of diazoxide during labor may cause cessation of uterine contractions, which may require administration of oxytocic agents to reinstate labor. However, this has not been reported with diazoxide when administered orally. Use caution in administering VYKAT XR during labor. Data Animal Data Diazoxide choline was administered orally to pregnant rats during the period of organogenesis at doses of 40, 100, and 160 mg/kg/day (0.3, 0.6, and 1.2 times the MRHD of 525 mg based on AUC). No malformations were observed; however, decreased fetal body weights, delayed skeletal ossification, and increased fetal resorptions were observed at 160 mg/kg/day (a dose approximately equal to the MRHD based on AUC) which was a maternally toxic dose. In a study in which rabbits were administered diazoxide intravenously, evidence of skeletal and cardiac teratogenic effects was noted at unknown multiples of the MRHD for diazoxide choline. 8.2 Lactation Risk Summary Diazoxide is present in human milk. There are no data on the effects of diazoxide on the breastfed infant or on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for VYKAT XR and any potential adverse effects on the breastfed child from VYKAT XR or from the underlying maternal condition. Clinical Considerations Because of potential adverse reactions, including hyperglycemia, monitoring the infant’s blood glucose may be advisable, especially during the neonatal period. 8.4 Pediatric Use The safety and effectiveness of VYKAT XR have been established for the treatment of hyperphagia in pediatric patients 4 years of age and older with PWS. Use of VYKAT XR for this indiction is supported by efficacy data from an adequate and well-controlled study that included pediatric patients with PWS [see Clinical Studies (14) ] and safety data from additional studies that included pediatric patients with PWS [see Adverse Reactions (6) ] , and the information on this use is described throughout the labeling. The safety and effectiveness of VYKAT XR have not been established for the treatment of hyperphagia in pediatric patients with PWS less than 4 years of age. Adverse Reactions in Pediatric Patients in an Unapproved Population The following postmarketing adverse reactions have been reported with the use of other diazoxide products for the treatment of hyperinsulinemic hypoglycemia, an unapproved population [see Adverse Reactions (6) ]: Pulmonary hypertension in pediatric patients less than 6 months of age, including neonates. Transient cataracts in association with hyperosmolar coma in a pediatric patient that subsided with correction of the hyperosmolarity. Development of abnormal facial features with chronic use in pediatric patients. VYKAT XR is not approved and is not recommended for the treatment of hyperinsulinemic hypoglycemia. Juvenile Animal Toxicity Data Diazoxide choline was orally administered at doses of 29, 58, and 145 mg/kg/day to juvenile rats from weaning (postnatal day 21) through adulthood (postnatal day 91). Reduced body weight and body weight gains, correlated with decreased food consumption, occurred at doses ≥ 58 mg/kg/day. Delayed sexual maturation occurred in males at ≥ 58 mg/kg/day and in females at all doses. Decreased motor activity was observed in males at ≥ 58 mg/kg/day, but no effect was observed on learning and memory at any dose in both males and females. The no adverse effect level (NOAEL) was 29 mg/kg/day, which results in exposures less than the clinical exposure at the maximum recommended human dose (MRHD) of 525 mg based on AUC. 8.5 Geriatric Use Clinical studies of VYKAT XR did not include any subjects 65 years of age and older to determine whether they respond differently from younger adult subjects. 8.6 Renal Impairment VYKAT XR has not been studied in patients with renal impairment. VYKAT XR is not recommended in patients with renal impairment. 8.7 Hepatic Impairment VYKAT XR has not been studied in patients with hepatic impairment. VYKAT XR is not recommended in patients with hepatic impairment."],"dosage_and_administration_table":["<table width=\"85%\"><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"16%\" align=\"center\" valign=\"middle\"/><thead><tr><th styleCode=\"Lrule Rrule\" valign=\"middle\" rowspan=\"2\">Weight</th><th styleCode=\"Rrule Botrule\" align=\"center\" valign=\"middle\">Starting Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule\" valign=\"middle\" rowspan=\"2\">Target Maintenance Dose</th></tr><tr><th styleCode=\"Rrule\" align=\"center\" valign=\"middle\">Weeks 1 and 2</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 3 and 4</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 5 and 6</th></tr></thead><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">20 to &lt;30 kg</td><td styleCode=\"Rrule\">25 mg</td><td styleCode=\"Rrule\">50 mg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">100 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">30 to &lt;40 kg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">150 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">40 to &lt;65 kg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">225 mg</td><td styleCode=\"Rrule\">225 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">65 to &lt;100 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">225 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">375 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">100 to &lt;135 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">375 mg</td><td styleCode=\"Rrule\">450 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">&#x2265;135 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">450 mg</td><td styleCode=\"Rrule\">525 mg</td></tr></tbody></table>","<table width=\"85%\" ID=\"T01\"><caption>Table 1: Recommended Starting Dosage and Titration Regimen in Adults and Pediatric Patients 4 Years of Age and Older</caption><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"16%\" align=\"center\" valign=\"middle\"/><thead><tr><th styleCode=\"Lrule Rrule\" valign=\"middle\" rowspan=\"3\">Weight</th><th styleCode=\"Rrule Botrule\" valign=\"middle\" colspan=\"4\">Recommended Once Daily Dosage</th></tr><tr><th styleCode=\"Rrule Botrule\" align=\"center\" valign=\"middle\">Starting Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule\" valign=\"middle\" rowspan=\"2\">Target Maintenance Dose</th></tr><tr><th styleCode=\"Rrule\" align=\"center\" valign=\"middle\">Weeks 1 and 2</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 3 and 4</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 5 and 6</th></tr></thead><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">20 kg to &lt;30 kg</td><td styleCode=\"Rrule\">25 mg</td><td styleCode=\"Rrule\">50 mg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">100 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">30 kg to &lt;40 kg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">150 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">40 kg to &lt;65 kg</td><td styleCode=\"Rrule\">75 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">225 mg</td><td styleCode=\"Rrule\">225 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">65 kg to &lt;100 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">225 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">375 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">100 kg to &lt;135 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">375 mg</td><td styleCode=\"Rrule\">450 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">&#x2265;135 kg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">450 mg</td><td styleCode=\"Rrule\">525 mg</td></tr></tbody></table>","<table width=\"85%\" ID=\"T02\"><caption>Table 2: VYKAT XR Dosage Modifications for Concomitant Use with Strong CYP1A2 Inhibitors</caption><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"21%\" align=\"center\" valign=\"middle\"/><col width=\"16%\" align=\"center\" valign=\"middle\"/><thead><tr><th styleCode=\"Lrule Rrule\" valign=\"middle\" rowspan=\"3\">Weight</th><th styleCode=\"Rrule Botrule\" valign=\"middle\" colspan=\"4\">VYKAT XR Recommended Once Daily Dosage</th></tr><tr><th styleCode=\"Rrule Botrule\" align=\"center\" valign=\"middle\">Starting Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule Botrule\" valign=\"middle\">Titration Dosage</th><th styleCode=\"Rrule\" valign=\"middle\" rowspan=\"2\">Target Maintenance Dose</th></tr><tr><th styleCode=\"Rrule\" align=\"center\" valign=\"middle\">Weeks 1 and 2</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 3 and 4</th><th styleCode=\"Rrule\" valign=\"middle\">Weeks 5 and 6</th></tr></thead><tbody><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">20 to &lt;30 kg</td><td styleCode=\"Rrule\">25 mg</td><td styleCode=\"Rrule\">25 mg</td><td styleCode=\"Rrule\">50 mg</td><td styleCode=\"Rrule\">75 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">30 to &lt;40 kg</td><td styleCode=\"Rrule\">50 mg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">100 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">40 to &lt;65 kg</td><td styleCode=\"Rrule\">50 mg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">150 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">65 to &lt;100 kg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">150 mg</td><td styleCode=\"Rrule\">200 mg</td><td styleCode=\"Rrule\">250 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">100 to &lt;135 kg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">200 mg</td><td styleCode=\"Rrule\">250 mg</td><td styleCode=\"Rrule\">300 mg</td></tr><tr styleCode=\"Botrule\"><td styleCode=\"Lrule Rrule\">&#x2265;135 kg</td><td styleCode=\"Rrule\">100 mg</td><td styleCode=\"Rrule\">200 mg</td><td styleCode=\"Rrule\">300 mg</td><td styleCode=\"Rrule\">325 mg</td></tr></tbody></table>"],"animal_pharmacology_and_or_toxicology":["13.2 Animal Toxicology and/or Pharmacology Cataracts were observed in dogs given repeated daily oral doses of diazoxide of approximately 40 mg/kg/day for one month. The lenticular changes resembled those which occur experimentally in animals with increased blood glucose levels."],"package_label_principal_display_panel":["Bottle Label - VYKAT XR - 25 mg PRINCIPAL DISPLAY PANEL NDC 83860- 025 -01 Vykat ™ XR (diazoxide choline) Extended-Release Tablets 25 mg Dispense the accompanying Medication Guide to each patient Rx only 30 tablets SOLENO ® THERAPEUTICS image of label - 25mg","Bottle Label - VYKAT XR - 75 mg PRINCIPAL DISPLAY PANEL NDC 83860- 075 -01 Vykat ™ XR (diazoxide choline) Extended-Release Tablets 75 mg Dispense the accompanying Medication Guide to each patient Rx only 30 tablets SOLENO ® THERAPEUTICS image of label - 75mg","Bottle Label - VYKAT XR - 150 mg PRINCIPAL DISPLAY PANEL NDC 83860- 150 -01 Vykat ™ XR (diazoxide choline) Extended-Release Tablets 150 mg Dispense the accompanying Medication Guide to each patient Rx only 30 tablets SOLENO ® THERAPEUTICS image of label - 150mg"],"carcinogenesis_and_mutagenesis_and_impairment_of_fertility":["13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Carcinogenicity studies have not been performed with diazoxide choline. Mutagenesis Diazoxide choline was not mutagenic in the in vitro bacterial reverse mutation assay (Ames test) and in the mouse lymphoma assay. Diazoxide choline was not clastogenic in the in vivo rat micronucleus assay. Impairment of Fertility Diazoxide choline was orally administered to male and female rats at doses of 58, 116, and 232 mg/kg/day (1, 2, and 4 times the maximum recommended human dose (MRHD) on a mg/m 2 basis). Females were treated two weeks prior to mating and continuing through conception and implantation and males were treated for four weeks prior to mating continuing for 35 days after mating. No effects on male or female fertility parameters were observed. Decreases in the mean number of corpora lutea, implantation sites, and live embryos occurred at 4 times the MRHD on a mg/m 2 basis."]},"tags":[{"label":"diazoxide","category":"class"},{"label":"Small Molecule","category":"modality"},{"label":"Sulfonylurea receptor 1, Kir6.2","category":"target"},{"label":"ABCC8","category":"gene"},{"label":"KCNJ11","category":"gene"},{"label":"NAMPT","category":"gene"},{"label":"C02DA01","category":"atc"},{"label":"Oral","category":"route"},{"label":"Suspension","category":"form"},{"label":"Off-Patent","category":"patent"},{"label":"Generic Available","category":"availability"},{"label":"Mature","category":"status"},{"label":"Hyperinsulinism","category":"indication"},{"label":"Hypertensive Emergencies","category":"indication"},{"label":"Hypertensive urgency","category":"indication"},{"label":"Insulinoma","category":"indication"},{"label":"Islet cell hyperplasia","category":"indication"},{"label":"Approved 1970s","category":"decade"},{"label":"Antihypertensive Agents","category":"pharmacology"},{"label":"Cardiovascular Agents","category":"pharmacology"},{"label":"Vasodilator Agents","category":"pharmacology"}],"phase":"marketed","safety":{"boxedWarnings":[],"safetySignals":[{"date":"","signal":"DRUG INEFFECTIVE","source":"FDA FAERS","actionTaken":"136 reports"},{"date":"","signal":"HYPOGLYCAEMIA","source":"FDA FAERS","actionTaken":"97 reports"},{"date":"","signal":"OFF LABEL USE","source":"FDA FAERS","actionTaken":"66 reports"},{"date":"","signal":"OEDEMA PERIPHERAL","source":"FDA FAERS","actionTaken":"62 reports"},{"date":"","signal":"HYPERGLYCAEMIA","source":"FDA FAERS","actionTaken":"54 reports"},{"date":"","signal":"OEDEMA","source":"FDA FAERS","actionTaken":"43 reports"},{"date":"","signal":"DRUG INEFFECTIVE FOR UNAPPROVED INDICATION","source":"FDA FAERS","actionTaken":"38 reports"},{"date":"","signal":"WEIGHT INCREASED","source":"FDA FAERS","actionTaken":"36 reports"},{"date":"","signal":"FLUID RETENTION","source":"FDA FAERS","actionTaken":"33 reports"},{"date":"","signal":"BLOOD GLUCOSE INCREASED","source":"FDA FAERS","actionTaken":"30 reports"}],"commonSideEffects":[{"effect":"Hypoglycaemia","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Necrotising colitis","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Hyperglycaemia","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Insulinoma","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Hypertrichosis","drugRate":"LLR 65","severity":"common","_validated":true},{"effect":"Hyperglycaemic hyperosmolar nonketotic syndrome","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Pancreatectomy","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Drug ineffective for unapproved indication","drugRate":"","severity":"common","_validated":false,"_confidence":0.3},{"effect":"Pulmonary hypertension","drugRate":"LLR 36","severity":"common","_validated":true},{"effect":"Necrotising enterocolitis neonatal","drugRate":"","severity":"common","_validated":false,"_confidence":0.3}],"contraindications":["Body fluid retention","Cerebrovascular disease","Chronic heart failure","Chronic myocardial ischemia","Decreased cardiac function","Diabetes mellitus","Disease of liver","Edema","Gout","Hyperglycemia","Hyperkalemia","Hypertension due to Aortic Coarctation","Hypertension due to Arteriovenous Shunt","Hyperuricemia","Hypokalemia","Ketoacidosis","Kidney disease","Orthostatic hypotension","Uremia"],"specialPopulations":{"Pregnancy":"Pregnancy Category C: Increased fetal resorptions, delayed parturition, and fetal skeletal anomalies have been noted. The drug crosses the placental barrier and causes degeneration of the fetal pancreatic beta cells.","Paediatric use":"No information available"}},"trials":[],"aliases":[],"patents":[],"pricing":[{"market":"United States","source":"CMS National Average Drug Acquisition Cost (NADAC)","asOfDate":"2024-04-17","unitCost":"$7.8384/ML","priceType":"NADAC","sourceUrl":"https://data.medicaid.gov/dataset/4j6z-xnwq","annualCost":"$2,822","description":"DIAZOXIDE 50 MG/ML ORAL SUSP","retrievedDate":"2026-04-07"}],"_sources":{"trials":{"url":"https://clinicaltrials.gov/search?intr=DIAZOXIDE","method":"api_direct","source":"ClinicalTrials.gov","rawText":"","confidence":1,"sourceType":"ctgov","retrievedAt":"2026-04-20T00:40:51.044499+00:00"},"regulatory.ca":{"url":"","method":"api_direct","source":"Health Canada DPD","rawText":"","confidence":1,"sourceType":"health_canada_dpd","retrievedAt":"2026-04-20T00:40:56.955006+00:00"},"regulatory.us":{"url":"","method":"api_direct","source":"FDA Drugs@FDA","rawText":"","confidence":1,"sourceType":"fda_drugsfda","retrievedAt":"2026-04-20T00:40:50.159220+00:00"},"publicationCount":{"url":"https://pubmed.ncbi.nlm.nih.gov/?term=DIAZOXIDE","method":"api_direct","source":"PubMed/NCBI","rawText":"","confidence":1,"sourceType":"pubmed","retrievedAt":"2026-04-20T00:40:57.266563+00:00"},"administration.route":{"url":"","method":"deterministic","source":"FDA Label","rawText":"","confidence":1,"sourceType":"fda_label","retrievedAt":"2026-04-20T00:40:48.077643+00:00"},"safety.boxedWarnings":{"url":"","method":"deterministic","source":"FDA Label (no boxed warning)","rawText":"","confidence":1,"sourceType":"fda_label","retrievedAt":"2026-04-20T00:40:48.077675+00:00"},"safety.safetySignals":{"url":"https://api.fda.gov/drug/event.json","method":"api_direct","source":"FDA FAERS","rawText":"","confidence":1,"sourceType":"fda_faers","retrievedAt":"2026-04-20T00:40:58.814669+00:00"},"crossReferences.chemblId":{"url":"https://www.ebi.ac.uk/chembl/compound_report_card/CHEMBL4297276/","method":"api_direct","source":"ChEMBL (EMBL-EBI)","rawText":"","confidence":1,"sourceType":"chembl","retrievedAt":"2026-04-20T00:40:58.049066+00:00"},"regulatory.fda_application":{"url":"","method":"deterministic","source":"FDA Label","rawText":"NDA216665","confidence":1,"sourceType":"fda_label","retrievedAt":"2026-04-20T00:40:48.077678+00:00"}},"allNames":"proglycem","offLabel":[],"synonyms":["diazoxide","dizoxide","hyperstat","hypertonalum","proglicem"],"timeline":[{"date":"1973-01-22","type":"positive","source":"DrugCentral","milestone":"FDA approval"},{"date":"1987-08-26","type":"neutral","source":"FDA Orange Book","milestone":"Generic entry — 1 manufacturer approved"}],"aiSummary":"Proglycem (Diazoxide) is a small molecule diazoxide drug that targets the sulfonylurea receptor 1 (SUR1) and Kir6.2 subunit of the ATP-sensitive potassium channel. Originally developed and currently owned by Teva Branded Pharm, it was FDA-approved in 1973 for various indications including hyperinsulinism, hypertensive emergencies, and insulinoma. As an off-patent medication, Proglycem is available as a generic from multiple manufacturers. Key safety considerations include its potential to cause hypotension and electrolyte imbalances. Proglycem's commercial status allows for generic competition.","approvals":[{"date":"1973-01-22","orphan":false,"company":"","regulator":"FDA"}],"brandName":"Proglycem","ecosystem":[{"indication":"Hyperinsulinism","otherDrugs":[],"globalPrevalence":null},{"indication":"Hypertensive Emergencies","otherDrugs":[{"name":"phentolamine","slug":"phentolamine","company":"Novartis"},{"name":"trimetaphan","slug":"trimetaphan","company":"Roche"}],"globalPrevalence":null},{"indication":"Hypertensive urgency","otherDrugs":[{"name":"chlorothiazide","slug":"chlorothiazide","company":"Oak Pharms Akorn"},{"name":"fenoldopam","slug":"fenoldopam","company":"Hospira"},{"name":"hydrochlorothiazide","slug":"hydrochlorothiazide","company":""},{"name":"losartan","slug":"losartan","company":"Merck Sharp Dohme"}],"globalPrevalence":null},{"indication":"Insulinoma","otherDrugs":[],"globalPrevalence":null},{"indication":"Islet cell hyperplasia","otherDrugs":[],"globalPrevalence":null}],"mechanism":{"target":"Sulfonylurea receptor 1, Kir6.2","novelty":"Follow-on","targets":[{"gene":"ABCC8","source":"DrugCentral","target":"Sulfonylurea receptor 1, Kir6.2","protein":"ATP-binding cassette sub-family C member 8"},{"gene":"KCNJ11","source":"DrugCentral","target":"Sulfonylurea receptor 1, Kir6.2","protein":"ATP-sensitive inward rectifier potassium channel 11"},{"gene":"NAMPT","source":"DrugCentral","target":"Nicotinamide phosphoribosyltransferase","protein":"Nicotinamide phosphoribosyltransferase"}],"modality":"Small Molecule","drugClass":"diazoxide","explanation":"Imagine your cells have a special gate that controls how much sugar and insulin they let in. Proglycem blocks this gate, making it harder for insulin to enter the cells and causing blood sugar levels to rise. This can be helpful for people with conditions like hyperinsulinism, where their cells are producing too much insulin.","oneSentence":"Proglycem works by blocking the ATP-sensitive potassium channel, which helps to increase blood sugar levels and reduce insulin secretion.","technicalDetail":"Proglycem (Diazoxide) acts as a potassium channel opener by inhibiting the ATP-sensitive potassium channel, specifically targeting the sulfonylurea receptor 1 (SUR1) and Kir6.2 subunit, which leads to membrane depolarization and closure of the potassium channels, ultimately resulting in increased blood glucose levels and reduced insulin secretion.","_target_confidence":0.5},"commercial":{"launchDate":"1973","_launchSource":"DrugCentral (FDA 1973-01-22, )"},"references":[{"id":1,"url":"https://drugcentral.org/drugcard/854","fields":["approvals","synonyms","ATC","PK","indications","contraindications","DDIs","targets","patents","FAERS"],"source":"DrugCentral"},{"id":2,"url":"https://clinicaltrials.gov/search?intr=DIAZOXIDE","fields":["trials"],"source":"ClinicalTrials.gov"},{"id":3,"url":"https://pubmed.ncbi.nlm.nih.gov/?term=DIAZOXIDE","fields":["publications"],"source":"PubMed/NCBI"},{"id":4,"url":"https://www.fda.gov/drugs/drug-approvals-and-databases/orange-book-data-files","fields":["patents","exclusivity","genericManufacturers"],"source":"FDA Orange Book"}],"_enrichedAt":"2026-03-30T10:33:22.288192","_validation":{"fieldsValidated":0,"lastValidatedAt":"2026-04-20T00:41:02.082362+00:00","fieldsConflicting":9,"overallConfidence":0.8},"biosimilars":[],"competitors":[{"drugName":"nicotinic acid","drugSlug":"nicotinic-acid","fdaApproval":"1957-07-24","relationship":"same-target"}],"dataSources":[{"url":"https://data.medicaid.gov/dataset/4j6z-xnwq","name":"CMS National Average Drug Acquisition Cost (NADAC)","fields":["pricing"],"retrievedDate":"2026-04-07"}],"genericName":"diazoxide","indications":{"approved":[{"name":"Hyperinsulinism","source":"DrugCentral","snomedId":83469008,"regulator":"FDA","eligibility":"Children and adults with severe hypoglycemia due to hyperinsulinism"},{"name":"Hypertensive Emergencies","source":"DrugCentral","snomedId":"","regulator":"FDA","eligibility":"Adults with severe hypertension with acute end-organ damage"},{"name":"Hypertensive urgency","source":"DrugCentral","snomedId":443482000,"regulator":"FDA","eligibility":"Adults with severe hypertension without acute end-organ damage"},{"name":"Insulinoma","source":"DrugCentral","snomedId":302822000,"regulator":"FDA","eligibility":"Adults with insulinoma"},{"name":"Islet cell hyperplasia","source":"DrugCentral","snomedId":42681006,"regulator":"FDA","eligibility":"Children and adults with islet cell hyperplasia"}],"offLabel":[{"name":"Hypertensive Emergency associated with Pregnancy","source":"DrugCentral","drugName":"DIAZOXIDE"}],"pipeline":[]},"currentOwner":"Teva Branded Pharm","drugCategory":"mature","labelChanges":[],"patentStatus":"Off-patent — no active Orange Book patents","relatedDrugs":[{"drugId":"nicotinic-acid","brandName":"nicotinic acid","genericName":"nicotinic acid","approvalYear":"1957","relationship":"same-target"}],"trialDetails":[{"nctId":"NCT07450664","phase":"","title":"Observational Study of VYKAT™ XR in Patients With Prader-Willi Syndrome","status":"ENROLLING_BY_INVITATION","sponsor":"Soleno Therapeutics, Inc.","startDate":"2025-11-26","conditions":["Prader-Willi Syndrome"],"enrollment":200,"completionDate":"2028-03-02"},{"nctId":"NCT07403604","phase":"PHASE1","title":"Effect of Insulin Lowering on Lipogenesis","status":"NOT_YET_RECRUITING","sponsor":"Columbia University","startDate":"2026-04","conditions":["Hyperinsulinemia","Insulin Resistance","Non-Alcoholic Fatty Liver Disease","Prediabetic State","Obesity"],"enrollment":25,"completionDate":"2029-06"},{"nctId":"NCT05729282","phase":"PHASE1","title":"Glycemic Effect of Diazoxide in NAFLD","status":"COMPLETED","sponsor":"Columbia University","startDate":"2023-08-01","conditions":["Hyperinsulinemia","Insulin Resistance","Non-Alcoholic Fatty Liver Disease","Prediabetic State"],"enrollment":24,"completionDate":"2025-09-10"},{"nctId":"NCT06606327","phase":"PHASE1","title":"Diazoxide Suppression Test P&F Study","status":"RECRUITING","sponsor":"Columbia University","startDate":"2024-10-23","conditions":["Insulin Resistance","Hyperinsulinemia","Obesity"],"enrollment":10,"completionDate":"2028-01"},{"nctId":"NCT03608163","phase":"PHASE4","title":"Novel Approach for the Prevention of Hypoglycemia Associated Autonomic Failure (HAAF)","status":"TERMINATED","sponsor":"Albert Einstein College of Medicine","startDate":"2019-01-08","conditions":["Diabetes Mellitus, Type 1","Hypoglycemia","Hypoglycemia Unawareness"],"enrollment":4,"completionDate":"2019-08-22"},{"nctId":"NCT06308107","phase":"PHASE1","title":"Safety and Feasibility of Hyperkalemic Cardioplegia With Diazoxide in Cardiac Surgery (CPG-DZX) Trial","status":"COMPLETED","sponsor":"Johns Hopkins University","startDate":"2024-07-08","conditions":["Myocardial Stunning"],"enrollment":30,"completionDate":"2025-05-09"},{"nctId":"NCT03566511","phase":"PHASE2","title":"Use of Functional MRI to Assess Functional Hypothalamic Activation in Response to Diazoxide","status":"TERMINATED","sponsor":"Meredith Hawkins","startDate":"2018-06-12","conditions":["Diabetes Mellitus, Type 2","Glucose, High Blood","Glucose Metabolism Disorders (Including Diabetes Mellitus)"],"enrollment":37,"completionDate":"2020-08-01"},{"nctId":"NCT01028846","phase":"PHASE4","title":"Central Mechanisms That Regulate Glucose Metabolism in Humans","status":"TERMINATED","sponsor":"Meredith Hawkins","startDate":"2006-11-02","conditions":["Type 2 Diabetes","Glucose Metabolism Disorders","Glucose, High Blood"],"enrollment":10,"completionDate":"2007-12-05"},{"nctId":"NCT05701774","phase":"PHASE3","title":"Open-Label Extension Study of DCCR in Patients With Prader-Willi Syndrome","status":"ACTIVE_NOT_RECRUITING","sponsor":"Soleno Therapeutics, Inc.","startDate":"2023-01-31","conditions":["Prader-Willi Syndrome"],"enrollment":83,"completionDate":"2028-06"},{"nctId":"NCT03540758","phase":"PHASE2","title":"Regulation of Endogenous Glucose Production by Central KATP Channels","status":"RECRUITING","sponsor":"Meredith Hawkins","startDate":"2018-08-01","conditions":["Type 2 Diabetes Mellitus","Glucose Metabolism Disorders","Glucose, High Blood"],"enrollment":100,"completionDate":"2027-04"},{"nctId":"NCT03714373","phase":"PHASE3","title":"Open-Label Extension Study of DCCR in PWS 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Transplant Recipients","status":"WITHDRAWN","sponsor":"Albert Einstein College of Medicine","startDate":"2019-04-21","conditions":["Diabetes Mellitus, Type 2","Glucose, High Blood","Glucose Metabolism Disorders"],"enrollment":0,"completionDate":"2023-04-21"},{"nctId":"NCT04830982","phase":"PHASE1","title":"Safety and Efficacy of IV Diazoxide as an Additive to Hyperkalemic Cardioplegia in Patients Undergoing Cardiac Surgery With Cardiopulmonary Bypass","status":"WITHDRAWN","sponsor":"Johns Hopkins University","startDate":"2023-09-01","conditions":["Myocardial Stunning"],"enrollment":0,"completionDate":"2025-10-30"},{"nctId":"NCT05532020","phase":"PHASE2","title":"An Open-Label Study of Diazoxide Choline in Patients With Genetic Obesities","status":"UNKNOWN","sponsor":"Soleno Therapeutics, Inc.","startDate":"2023-01","conditions":["SH2B1 Deficiency Obesity","Obesity Associated With PCSK1 Mutation (rs6232 Variant)","SIM1 Deficiency Obesity"],"enrollment":30,"completionDate":"2024-03"},{"nctId":"NCT02779257","phase":"PHASE4","title":"Pasireotide Treatment for Neuroendocrine Tumor","status":"WITHDRAWN","sponsor":"University of Maryland, Baltimore","startDate":"2016-04","conditions":["Gastro-enteropancreatic Neuroendocrine Tumor"],"enrollment":0,"completionDate":"2016-06"},{"nctId":"NCT04086810","phase":"PHASE3","title":"An Open-Label Study of DCCR Tablet in Patients With PWS","status":"WITHDRAWN","sponsor":"Soleno Therapeutics, Inc.","startDate":"2019-10","conditions":["Prader-Willi Syndrome"],"enrollment":0,"completionDate":"2019-10"},{"nctId":"NCT01488136","phase":"PHASE4","title":"Use of Diazoxide in Acute Hypoglycaemia","status":"COMPLETED","sponsor":"University of Dundee","startDate":"2012-01","conditions":["Type 1 Diabetes"],"enrollment":12,"completionDate":"2013-03"},{"nctId":"NCT00989781","phase":"NA","title":"Mechanisms of Increased Androgen Production Among Women With Polycystic Ovary Syndrome","status":"COMPLETED","sponsor":"University of California, San Diego","startDate":"2009-09","conditions":["Polycystic Ovary Syndrome"],"enrollment":41,"completionDate":"2013-09"},{"nctId":"NCT00892073","phase":"PHASE2","title":"Hypothalamic Obesity Following Craniopharyngioma Surgery: A Pilot Trial of Combined Metformin and Diazoxide Therapy","status":"COMPLETED","sponsor":"The Hospital for Sick Children","startDate":"2006-05","conditions":["Hypothalamic Obesity"],"enrollment":9,"completionDate":"2008-01"},{"nctId":"NCT02049385","phase":"PHASE1,PHASE2","title":"Does Enhanced Glutamate Transporter Function Produce Antidepressant Effects in People With Major Depression?","status":"TERMINATED","sponsor":"National Institute of Mental Health (NIMH)","startDate":"2014-01-03","conditions":["Depression"],"enrollment":10,"completionDate":"2016-07-21"},{"nctId":"NCT00683774","phase":"NA","title":"Insulin and Polycystic Ovary Syndrome","status":"COMPLETED","sponsor":"Virginia Commonwealth University","startDate":"2005-11","conditions":["PCOS"],"enrollment":21,"completionDate":"2008-12"},{"nctId":"NCT02893618","phase":"PHASE2","title":"A 5 Treatment Period Pharmacokinetic Study Evaluating Dose Proportionality and Food Effects of Diazoxide Choline Controlled-Release Tablet (DCCR)","status":"UNKNOWN","sponsor":"Essentialis, Inc.","startDate":"2017-07","conditions":["Prader-Willi Syndrome"],"enrollment":32,"completionDate":"2017-12"},{"nctId":"NCT00973271","phase":"PHASE3","title":"Diazoxide Choline Controlled-Release Tablet (DCCR) for Very High Triglycerides","status":"WITHDRAWN","sponsor":"Essentialis, Inc.","startDate":"2011-03","conditions":["Hypertriglyceridemia"],"enrollment":0,"completionDate":"2011-12"},{"nctId":"NCT02034071","phase":"PHASE1,PHASE2","title":"Clinical Study of Diazoxide Choline Controlled-Release Tablet (DCCR) in Patients With Prader-Willi Syndrome","status":"COMPLETED","sponsor":"Essentialis, Inc.","startDate":"2014-04","conditions":["Prader-Willi Syndrome"],"enrollment":13,"completionDate":"2015-05"},{"nctId":"NCT00901823","phase":"PHASE1","title":"Open-Label, Single- and Multiple-Dose Pharmacokinetic Study of Diazoxide Choline","status":"WITHDRAWN","sponsor":"Essentialis, Inc.","startDate":"2011-03","conditions":["Hypertriglyceridemia"],"enrollment":0,"completionDate":"2011-03"},{"nctId":"NCT00631033","phase":"PHASE2","title":"DZX Mediated Insulin Suppression in Obese Men","status":"COMPLETED","sponsor":"Rijnstate Hospital","startDate":"2008-07","conditions":["Obesity"],"enrollment":51,"completionDate":"2011-12"},{"nctId":"NCT01211847","phase":"PHASE2","title":"Efficacy Study of Diazoxide Choline to Treat Hypertriglyceridemia","status":"COMPLETED","sponsor":"Essentialis, Inc.","startDate":"2010-10","conditions":["Hypertriglyceridemia","Dyslipidemia"],"enrollment":44,"completionDate":"2011-12"},{"nctId":"NCT01211860","phase":"PHASE1","title":"Pharmacokinetic Study of Diazoxide Choline in Hypertriglyeridemic Subjects","status":"COMPLETED","sponsor":"Essentialis, Inc.","startDate":"2010-10","conditions":["Hypertriglyceridmia"],"enrollment":9,"completionDate":"2010-11"},{"nctId":"NCT00131755","phase":"PHASE4","title":"Efficacy of Diazoxide in Type 1 Diabetes","status":"COMPLETED","sponsor":"Grill, Valdemar, M.D.","startDate":"2005-02","conditions":["Diabetes Mellitus, Type 1"],"enrollment":40,"completionDate":"2008-08"},{"nctId":"NCT00306683","phase":"PHASE3","title":"Effect of Diazoxide on the Obesity Secondary to Hypothalamic-pituitary Lesions","status":"COMPLETED","sponsor":"Assistance Publique - Hôpitaux de Paris","startDate":"2006-04","conditions":["Hypothalamic-pituitary Lesions","Craniopharyngiomas"],"enrollment":40,"completionDate":"2009-04"},{"nctId":"NCT00696475","phase":"PHASE2","title":"Diazoxide Choline in Hypertriglyceridemia","status":"COMPLETED","sponsor":"Essentialis, Inc.","startDate":"2008-06","conditions":["Hypertriglyceridemia"],"enrollment":80,"completionDate":"2009-03"},{"nctId":"NCT00688857","phase":"PHASE1","title":"Open-label Pharmacokinetic Study of Diazoxide Choline Coated vs. Uncoated Formulations","status":"COMPLETED","sponsor":"Essentialis, Inc.","startDate":"2008-05","conditions":["Hypertriglyceridemia"],"enrollment":12,"completionDate":"2008-07"},{"nctId":"NCT00994149","phase":"PHASE2,PHASE3","title":"Diazoxide In the Management Of Hypoglycemic Neonates","status":"UNKNOWN","sponsor":"University of Saskatchewan","startDate":"2009-10","conditions":["Infant, Newborn, Diseases","Pregnancy in Diabetics","Infant, Diabetic Mother","Hypoglycemia","Infant, Large for Gestational Age"],"enrollment":100,"completionDate":"2011-10"},{"nctId":"NCT00151684","phase":"PHASE2","title":"Diazoxide-Mediated Insulin Suppression in Hyperinsulinemic Obese Men","status":"COMPLETED","sponsor":"Rijnstate 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