Drug interactions
Amitriptyline + Rivastigmine
Severity: Moderate
Amitriptyline and Rivastigmine: 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
The anticholinergic action of amitriptyline counteracts rivastigmine and may reduce its cognitive benefit in dementia while worsening confusion. Combined use is generally discouraged in this population.
What this interaction means in plain words
Amitriptyline and Rivastigmine 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.
Amitriptyline belongs to Central Nervous System; Rivastigmine belongs to Central Nervous System.
Why it happens
Pharmacodynamic antagonism between muscarinic blockade and cholinesterase inhibition.
What to do
Avoid amitriptyline in patients with dementia where possible and select a non-anticholinergic antidepressant. If used together, monitor cognition and function.
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 Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Other interactions of Rivastigmine
Frequently asked questions
Can I take Amitriptyline with Rivastigmine?
MediHelp rates the interaction as moderate. Amitriptyline and Rivastigmine 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. The anticholinergic action of amitriptyline counteracts rivastigmine and may reduce its cognitive benefit in dementia while worsening confusion. Combined use is generally discouraged in this population.
How serious is the interaction between Amitriptyline and Rivastigmine?
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 amitriptyline in patients with dementia where possible and select a non-anticholinergic antidepressant. If used together, monitor cognition and function.
What other medicines interact with Amitriptyline?
MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.
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