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Drug interactions

Flavoxate + Pilocarpine

Severity: Moderate

Flavoxate 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

Pilocarpine is a muscarinic agonist and flavoxate has antimuscarinic activity, so they oppose each other. The therapeutic effect of either drug, such as salivation with pilocarpine, may be reduced.

What this interaction means in plain words

Flavoxate 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.

Flavoxate belongs to Genitourinary; Pilocarpine belongs to Miscellaneous.

Evidence level: Low

Why it happens

Pharmacodynamic antagonism at muscarinic receptors.

What to do

Monitor for reduced efficacy of pilocarpine, for example persistent dry mouth. Adjust therapy if the response is inadequate.

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 Flavoxate with Pilocarpine?

MediHelp rates the interaction as moderate. Flavoxate 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. Pilocarpine is a muscarinic agonist and flavoxate has antimuscarinic activity, so they oppose each other. The therapeutic effect of either drug, such as salivation with pilocarpine, may be reduced.

How serious is the interaction between Flavoxate 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: Monitor for reduced efficacy of pilocarpine, for example persistent dry mouth. Adjust therapy if the response is inadequate.

What other medicines interact with Flavoxate?

MediHelp also lists interactions of Flavoxate with, for example, Clozapine, Abobotulinumtoxina, Aclidinium. The full list is on the Flavoxate 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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