Drug interactions
Melatonin + Ramelteon
Severity: Minor
Melatonin and Ramelteon: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both agents act on the same melatonin receptors, so combining them gives duplicate therapy with little added benefit. It may increase drowsiness and next-day sedation.
What this interaction means in plain words
Melatonin and Ramelteon have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Melatonin belongs to Gastrointestinal Tract; Ramelteon belongs to Central Nervous System.
Why it happens
Duplicate agonism at MT1/MT2 melatonin receptors producing additive effects.
What to do
Avoid using both together and choose one agent for sleep. If both are taken, watch for next-day drowsiness.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Ramelteon
- Calcium / magnesium / potassium / sodium oxybates + Ramelteon Contraindicated
- Fluvoxamine + Ramelteon Contraindicated
- Ramelteon + Sodium oxybate Contraindicated
- Alfentanil + Ramelteon Moderate
- Amitriptyline + Ramelteon Moderate
- Amobarbital + Ramelteon Moderate
Other interactions of Melatonin
- Fluvoxamine + Melatonin Major
- Alfentanil + Melatonin Moderate
- Belladonna and opium + Melatonin Moderate
- Buprenorphine buccal + Melatonin Moderate
- Butabarbital + Melatonin Moderate
- Butalbital + Melatonin Moderate
Frequently asked questions
Can I take Melatonin with Ramelteon?
MediHelp rates the interaction as minor. Melatonin and Ramelteon have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both agents act on the same melatonin receptors, so combining them gives duplicate therapy with little added benefit. It may increase drowsiness and next-day sedation.
How serious is the interaction between Melatonin and Ramelteon?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid using both together and choose one agent for sleep. If both are taken, watch for next-day drowsiness.
What other medicines interact with Ramelteon?
MediHelp also lists interactions of Ramelteon with, for example, Calcium / magnesium / potassium / sodium oxybates, Fluvoxamine, Sodium oxybate. The full list is on the Ramelteon page.
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