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Oral Bedtime Melatonin

Hospital San Carlos, Madrid · FDA-approved active Small molecule ✓ Verified Jun 2026

Oral Bedtime Melatonin is a Melatonin receptor agonist Small molecule drug developed by Hospital San Carlos, Madrid. It is currently FDA-approved for Insomnia characterized by difficulty with sleep onset, Circadian rhythm sleep disorders. Also known as: Oral melatonin, Standard of care.

Melatonin binds to melatonin receptors (MT1 and MT2) in the suprachiasmatic nucleus to regulate circadian rhythm and promote sleep onset.

Oral bedtime melatonin is a small molecule that acts as a melatonin receptor agonist, classified as an agonist in the drug class. It has been studied for various conditions, including attention deficit/hyperactivity disorder, initial insomnia, and sleep disorders, among others.

At a glance

Generic nameOral Bedtime Melatonin
Also known asOral melatonin, Standard of care
SponsorHospital San Carlos, Madrid
Drug classMelatonin receptor agonist
TargetMT1 and MT2 melatonin receptors
ModalitySmall molecule
Therapeutic areaNeurology / Sleep Medicine
PhaseFDA-approved

Mechanism of action

Melatonin is an endogenous hormone that synchronizes the body's sleep-wake cycle by activating melatonin receptors in the brain. When administered orally at bedtime, it helps reset circadian rhythm disruptions and facilitates the transition to sleep. This is particularly useful for patients with circadian rhythm disorders or insomnia related to sleep-wake cycle dysregulation.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about Oral Bedtime Melatonin

What is Oral Bedtime Melatonin?

Oral Bedtime Melatonin is a Melatonin receptor agonist drug developed by Hospital San Carlos, Madrid, indicated for Insomnia characterized by difficulty with sleep onset, Circadian rhythm sleep disorders.

How does Oral Bedtime Melatonin work?

Melatonin binds to melatonin receptors (MT1 and MT2) in the suprachiasmatic nucleus to regulate circadian rhythm and promote sleep onset.

What is Oral Bedtime Melatonin used for?

Oral Bedtime Melatonin is indicated for Insomnia characterized by difficulty with sleep onset, Circadian rhythm sleep disorders.

Who makes Oral Bedtime Melatonin?

Oral Bedtime Melatonin is developed and marketed by Hospital San Carlos, Madrid (see full Hospital San Carlos, Madrid pipeline at /company/hospital-san-carlos-madrid).

Is Oral Bedtime Melatonin also known as anything else?

Oral Bedtime Melatonin is also known as Oral melatonin, Standard of care.

What drug class is Oral Bedtime Melatonin in?

Oral Bedtime Melatonin belongs to the Melatonin receptor agonist class. See all Melatonin receptor agonist drugs at /class/melatonin-receptor-agonist.

What development phase is Oral Bedtime Melatonin in?

Oral Bedtime Melatonin is FDA-approved (marketed).

What are the side effects of Oral Bedtime Melatonin?

Common side effects of Oral Bedtime Melatonin include Headache, Dizziness, Drowsiness, Nausea.

What does Oral Bedtime Melatonin target?

Oral Bedtime Melatonin targets MT1 and MT2 melatonin receptors and is a Melatonin receptor agonist.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing