Drug interactions
Dimenhydrinate + Trimipramine
Severity: Moderate
Dimenhydrinate and Trimipramine: 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 with anticholinergic activity, which adds to trimipramine's sedation. Patients may have marked drowsiness, impaired concentration, dry mouth and urinary retention.
What this interaction means in plain words
Dimenhydrinate and Trimipramine 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; Trimipramine belongs to Central Nervous System.
Why it happens
Additive H1 antagonism and antimuscarinic effects.
What to do
Warn about driving and alcohol, and use the lowest effective dose. Monitor older adults for confusion and anticholinergic effects.
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?
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Other interactions of Trimipramine
- Disopyramide + Trimipramine Contraindicated
- Dofetilide + Trimipramine Contraindicated
- Ibutilide + Trimipramine Contraindicated
- Isocarboxazid + Trimipramine Contraindicated
- Pentamidine + Trimipramine Contraindicated
- Phenelzine + Trimipramine Contraindicated
Other interactions of Dimenhydrinate
Frequently asked questions
Can I take Dimenhydrinate with Trimipramine?
MediHelp rates the interaction as moderate. Dimenhydrinate and Trimipramine 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 with anticholinergic activity, which adds to trimipramine's sedation. Patients may have marked drowsiness, impaired concentration, dry mouth and urinary retention.
How serious is the interaction between Dimenhydrinate and Trimipramine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Warn about driving and alcohol, and use the lowest effective dose. Monitor older adults for confusion and anticholinergic effects.
What other medicines interact with Trimipramine?
MediHelp also lists interactions of Trimipramine with, for example, Disopyramide, Dofetilide, Ibutilide. The full list is on the Trimipramine page.
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