Drug interactions
Pilocarpine + Rivastigmine
Severity: Moderate
Pilocarpine 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
Rivastigmine raises acetylcholine levels while pilocarpine directly activates muscarinic receptors. Together they can produce excessive cholinergic effects such as sweating, salivation, bradycardia and gastrointestinal upset.
What this interaction means in plain words
Pilocarpine 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.
Pilocarpine belongs to Miscellaneous; Rivastigmine belongs to Central Nervous System.
Why it happens
Additive cholinergic stimulation via cholinesterase inhibition and direct muscarinic agonism.
What to do
Monitor for muscarinic adverse effects and heart rate. Reduce the pilocarpine dose if symptoms occur.
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 Rivastigmine
Other interactions of Pilocarpine
- Amitriptyline + Pilocarpine Moderate
- Atenolol-chlorthalidone + Pilocarpine Moderate
- Atenolol + Pilocarpine Moderate
- Atropine + Pilocarpine Moderate
- Betaxolol + Pilocarpine Moderate
- Bethanechol + Pilocarpine Moderate
Frequently asked questions
Can I take Pilocarpine with Rivastigmine?
MediHelp rates the interaction as moderate. Pilocarpine 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. Rivastigmine raises acetylcholine levels while pilocarpine directly activates muscarinic receptors. Together they can produce excessive cholinergic effects such as sweating, salivation, bradycardia and gastrointestinal upset.
How serious is the interaction between Pilocarpine 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: Monitor for muscarinic adverse effects and heart rate. Reduce the pilocarpine dose if symptoms occur.
What other medicines interact with Rivastigmine?
MediHelp also lists interactions of Rivastigmine with, for example, Donepezil, Galantamine, Memantine-donepezil. The full list is on the Rivastigmine page.
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