Drug interactions
Revefenacin + Tiotropium
Severity: Major
Revefenacin and Tiotropium: major 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 are inhaled long-acting muscarinic antagonists, so using them together duplicates therapy. This can raise the risk of dry mouth, urinary retention, constipation, tachycardia and worsening narrow-angle glaucoma without added bronchodilator benefit.
What this interaction means in plain words
Revefenacin and Tiotropium can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Revefenacin belongs to Respiratory; Tiotropium belongs to Respiratory.
Why it happens
Duplicate muscarinic receptor antagonism produces additive systemic and local anticholinergic effects.
What to do
Avoid using two long-acting antimuscarinics together; choose one agent and add a drug from a different class, such as a LABA, if more control is required.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Tiotropium
Other interactions of Revefenacin
- Cyclosporin + Revefenacin Major
- Indacaterol-glycopyrronium + Revefenacin Major
- Revefenacin + Rifampicin Major
- Atropine + Revefenacin Moderate
- Benztropine + Revefenacin Moderate
- Darifenacin + Revefenacin Moderate
Frequently asked questions
Can I take Revefenacin with Tiotropium?
MediHelp rates the interaction as major. Revefenacin and Tiotropium can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both are inhaled long-acting muscarinic antagonists, so using them together duplicates therapy. This can raise the risk of dry mouth, urinary retention, constipation, tachycardia and worsening narrow-angle glaucoma without added bronchodilator benefit.
How serious is the interaction between Revefenacin and Tiotropium?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid using two long-acting antimuscarinics together; choose one agent and add a drug from a different class, such as a LABA, if more control is required.
What other medicines interact with Tiotropium?
MediHelp also lists interactions of Tiotropium with, for example, Glycopyrrolate inhaled, Indacaterol-glycopyrronium, Umeclidinium. The full list is on the Tiotropium page.
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