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Oral sulfate solution (OSS) — Competitive Intelligence Brief

Oral sulfate solution (OSS) (Oral sulfate solution (OSS)) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Osmotic laxative. Area: Gastroenterology.

marketed Osmotic laxative Gastroenterology Small molecule Live · refreshed every 30 min

Target snapshot

Oral sulfate solution (OSS) (Oral sulfate solution (OSS)) — Bo-In Lee. Oral sulfate solution acts as an osmotic laxative by drawing water into the intestinal lumen to promote bowel evacuation.

Comparator set (6 drugs)

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DrugGenericSponsorPhaseClassTargetApproval / PDUFA
Oral sulfate solution (OSS) TARGET Oral sulfate solution (OSS) Bo-In Lee marketed Osmotic laxative
Pizensy LACTITOL Braintree Labs marketed Osmotic Laxative 2020-01-01
Miralax Macrogol Braintree marketed Osmotic Laxative [EPC] 1984-01-01
Cephulac LACTULOSE Sanwa Kagaku Kenkyusho Co., Ltd. marketed Osmotic Laxative [EPC] 1976-01-01
Milk of Magnesia magnesium hydroxide Generic (multiple manufacturers) marketed Osmotic laxative, Antacid Gastric acid (direct neutralization) + osmotic effect in intestine 1880-01-01
Pico-Salax and Sodium phosphate enema Pico-Salax and Sodium phosphate enema Queen's University marketed Osmotic laxative / bowel cleanser
Macrogol (Forlax) Macrogol (Forlax) Bayer marketed Osmotic laxative

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

Sponsor landscape (Osmotic laxative class)

  1. Brooke Army Medical Center · 2 drugs in this class
  2. Cleveland Clinic Florida · 2 drugs in this class
  3. Gastroenterology Services, Ltd. · 2 drugs in this class
  4. Ipsen · 2 drugs in this class
  5. Benaroya Research Institute · 1 drug in this class
  6. Bo-In Lee · 1 drug in this class
  7. Amsterdam UMC, location VUmc · 1 drug in this class
  8. C.B. Fleet Company, Inc. · 1 drug in this class
  9. Bayer · 1 drug in this class
  10. Braintree Laboratories · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Oral sulfate solution (OSS) — Competitive Intelligence Brief. https://druglandscape.com/ci/oral-sulfate-solution-oss. Accessed 2026-05-16.

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