Drug interactions
Dimenhydrinate + Ramelteon
Severity: Moderate
Dimenhydrinate and Ramelteon: moderate 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
Dimenhydrinate is a sedating antihistamine and may add to the drowsiness caused by ramelteon. Next-day impairment and falls are possible, especially in older adults.
What this interaction means in plain words
Dimenhydrinate and Ramelteon can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dimenhydrinate belongs to Respiratory; Ramelteon belongs to Central Nervous System.
Why it happens
Additive sedation from melatonin receptor agonism and central H1 antihistamine blockade.
What to do
Counsel patients about additive drowsiness and avoid driving or hazardous tasks. Use the lowest effective doses and avoid the combination in older adults where possible.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dimenhydrinate and Ramelteon, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Dimenhydrinate
Frequently asked questions
Can I take Dimenhydrinate with Ramelteon?
MediHelp rates the interaction as moderate. Dimenhydrinate and Ramelteon can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Dimenhydrinate is a sedating antihistamine and may add to the drowsiness caused by ramelteon. Next-day impairment and falls are possible, especially in older adults.
How serious is the interaction between Dimenhydrinate and Ramelteon?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients about additive drowsiness and avoid driving or hazardous tasks. Use the lowest effective doses and avoid the combination in older adults where possible.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
