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Drug interactions

Fesoterodine + Ipratropium

Severity: Moderate

Fesoterodine and Ipratropium: 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

Fesoterodine is a systemic antimuscarinic, so ipratropium may add to dry mouth, constipation, urinary retention and blurred vision. The effect is generally mild given low systemic ipratropium exposure.

What this interaction means in plain words

Fesoterodine and Ipratropium 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.

Fesoterodine belongs to Genitourinary; Ipratropium belongs to Respiratory.

Evidence level: Moderate

Why it happens

Additive muscarinic receptor blockade.

What to do

Monitor for constipation, urinary retention and dry mouth. Consider dose reduction of fesoterodine if anticholinergic symptoms are bothersome.

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 Fesoterodine with Ipratropium?

MediHelp rates the interaction as moderate. Fesoterodine and Ipratropium 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. Fesoterodine is a systemic antimuscarinic, so ipratropium may add to dry mouth, constipation, urinary retention and blurred vision. The effect is generally mild given low systemic ipratropium exposure.

How serious is the interaction between Fesoterodine and Ipratropium?

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 constipation, urinary retention and dry mouth. Consider dose reduction of fesoterodine if anticholinergic symptoms are bothersome.

What other medicines interact with Ipratropium?

MediHelp also lists interactions of Ipratropium with, for example, Aclidinium, Benztropine, Bethanechol. The full list is on the Ipratropium page.

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