Drug interactions
Fesoterodine + Revefenacin
Severity: Moderate
Fesoterodine and Revefenacin: 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 block muscarinic receptors, so using them together adds to anticholinergic effects such as dry mouth, constipation, urinary retention and blurred vision. Systemic exposure to inhaled revefenacin is low, so the effect is usually modest.
What this interaction means in plain words
Fesoterodine and Revefenacin 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; Revefenacin belongs to Respiratory.
Why it happens
Additive pharmacodynamic antagonism at muscarinic receptors.
What to do
Monitor for urinary retention, constipation and ocular symptoms, particularly in older patients. Reduce or stop one agent if effects become troublesome.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fesoterodine and Revefenacin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Fesoterodine
Other interactions of Revefenacin
- Cyclosporin + Revefenacin Major
- Indacaterol-glycopyrronium + Revefenacin Major
- Revefenacin + Rifampicin Major
- Revefenacin + Tiotropium Major
- Atropine + Revefenacin Moderate
- Benztropine + Revefenacin Moderate
Frequently asked questions
Can I take Fesoterodine with Revefenacin?
MediHelp rates the interaction as moderate. Fesoterodine and Revefenacin 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 block muscarinic receptors, so using them together adds to anticholinergic effects such as dry mouth, constipation, urinary retention and blurred vision. Systemic exposure to inhaled revefenacin is low, so the effect is usually modest.
How serious is the interaction between Fesoterodine and Revefenacin?
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 urinary retention, constipation and ocular symptoms, particularly in older patients. Reduce or stop one agent if effects become troublesome.
What other medicines interact with Fesoterodine?
MediHelp also lists interactions of Fesoterodine with, for example, Bethanechol, Clozapine, Levoketoconazole. The full list is on the Fesoterodine 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.
