Drug interactions
Galantamine + Trimipramine
Severity: Moderate
Galantamine 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
Galantamine enhances cholinergic activity while trimipramine blocks muscarinic receptors, so the two may oppose each other and reduce the benefit of galantamine in dementia. Both can also cause bradycardia or conduction effects, and galantamine is partly metabolized by CYP2D6, which tricyclics may inhibit.
What this interaction means in plain words
Galantamine 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.
Galantamine belongs to Central Nervous System; Trimipramine belongs to Central Nervous System.
Why it happens
Pharmacodynamic antagonism between a cholinesterase inhibitor and an anticholinergic tricyclic, with possible CYP2D6 competition.
What to do
Avoid anticholinergic tricyclics in patients on cholinesterase inhibitors where possible and choose a less anticholinergic antidepressant. If used together, monitor cognition and heart rate.
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 Galantamine
- Galantamine + Memantine-donepezil Major
- Galantamine + Physostigmine Major
- Galantamine + Ponesimod Major
- Galantamine + Rivastigmine Major
- Amifampridine + Galantamine Moderate
- Amiodarone + Galantamine Moderate
Frequently asked questions
Can I take Galantamine with Trimipramine?
MediHelp rates the interaction as moderate. Galantamine 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. Galantamine enhances cholinergic activity while trimipramine blocks muscarinic receptors, so the two may oppose each other and reduce the benefit of galantamine in dementia. Both can also cause bradycardia or conduction effects, and galantamine is partly metabolized by CYP2D6, which tricyclics may inhibit.
How serious is the interaction between Galantamine 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: Avoid anticholinergic tricyclics in patients on cholinesterase inhibitors where possible and choose a less anticholinergic antidepressant. If used together, monitor cognition and heart rate.
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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