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Drug interactions

Bethanechol + Pilocarpine

Severity: Moderate

Bethanechol and Pilocarpine: 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

Both drugs are muscarinic agonists, so combined use can produce additive cholinergic effects such as sweating, salivation, bradycardia, bronchospasm and gastrointestinal cramping.

What this interaction means in plain words

Bethanechol and Pilocarpine 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.

Bethanechol belongs to Gastrointestinal Tract; Pilocarpine belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Additive direct muscarinic receptor agonism.

What to do

Avoid duplicate therapy where possible; if both are used, monitor for cholinergic adverse effects and reduce doses as needed.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bethanechol with Pilocarpine?

MediHelp rates the interaction as moderate. Bethanechol and Pilocarpine 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. Both drugs are muscarinic agonists, so combined use can produce additive cholinergic effects such as sweating, salivation, bradycardia, bronchospasm and gastrointestinal cramping.

How serious is the interaction between Bethanechol and Pilocarpine?

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 duplicate therapy where possible; if both are used, monitor for cholinergic adverse effects and reduce doses as needed.

What other medicines interact with Bethanechol?

MediHelp also lists interactions of Bethanechol with, for example, Darifenacin, Fesoterodine, Oxybutynin. The full list is on the Bethanechol page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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