Drug interactions
Galantamine + Venlafaxine
Severity: Minor
Galantamine and Venlafaxine: 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
Venlafaxine is a weak CYP2D6 inhibitor and galantamine is partly metabolized by CYP2D6, so galantamine exposure may rise slightly. The effect is small, though cholinergic adverse effects such as nausea and bradycardia could be somewhat more frequent.
What this interaction means in plain words
Galantamine and Venlafaxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Galantamine belongs to Central Nervous System; Venlafaxine belongs to Central Nervous System.
Why it happens
Weak inhibition of CYP2D6-mediated galantamine metabolism by venlafaxine.
What to do
No dose change is normally needed; monitor heart rate and gastrointestinal tolerance during galantamine titration.
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 Venlafaxine
- Isocarboxazid + Venlafaxine Contraindicated
- Methylene blue + Venlafaxine Contraindicated
- Phenelzine + Venlafaxine Contraindicated
- Procarbazine + Venlafaxine Contraindicated
- Rasagiline + Venlafaxine Contraindicated
- Safinamide + Venlafaxine 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 Venlafaxine?
MediHelp rates the interaction as minor. Galantamine and Venlafaxine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Venlafaxine is a weak CYP2D6 inhibitor and galantamine is partly metabolized by CYP2D6, so galantamine exposure may rise slightly. The effect is small, though cholinergic adverse effects such as nausea and bradycardia could be somewhat more frequent.
How serious is the interaction between Galantamine and Venlafaxine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is normally needed; monitor heart rate and gastrointestinal tolerance during galantamine titration.
What other medicines interact with Venlafaxine?
MediHelp also lists interactions of Venlafaxine with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Venlafaxine page.
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