Drug interactions
Quetiapine + Ramelteon
Severity: Minor
Quetiapine 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
Quetiapine is markedly sedating through histamine H1 and alpha-1 blockade, and ramelteon adds a hypnotic effect. Combined use may cause greater daytime drowsiness, dizziness or impaired psychomotor performance.
What this interaction means in plain words
Quetiapine 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.
Quetiapine belongs to Central Nervous System; Ramelteon belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects; no significant pharmacokinetic interaction is established.
What to do
Counsel the patient about additive drowsiness and caution on driving. Reassess the need for both agents if daytime sedation develops.
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 Quetiapine
- Adagrasib + Quetiapine Major
- Amiodarone + Quetiapine Major
- Amisulpride + Quetiapine Major
- Amoxapine + Quetiapine Major
- Anagrelide + Quetiapine Major
- Apalutamide + Quetiapine Major
Frequently asked questions
Can I take Quetiapine with Ramelteon?
MediHelp rates the interaction as minor. Quetiapine 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. Quetiapine is markedly sedating through histamine H1 and alpha-1 blockade, and ramelteon adds a hypnotic effect. Combined use may cause greater daytime drowsiness, dizziness or impaired psychomotor performance.
How serious is the interaction between Quetiapine 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: Counsel the patient about additive drowsiness and caution on driving. Reassess the need for both agents if daytime sedation develops.
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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