Drug interactions
Cevimeline + Darifenacin
Severity: Moderate
Cevimeline and Darifenacin: 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
Cevimeline is a muscarinic agonist and darifenacin is a muscarinic antagonist, so they work against each other. The benefit of cevimeline on dry mouth may be reduced and darifenacin efficacy may be blunted.
What this interaction means in plain words
Cevimeline and Darifenacin 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.
Cevimeline belongs to Miscellaneous; Darifenacin belongs to Genitourinary.
Why it happens
Pharmacodynamic antagonism at muscarinic receptors.
What to do
Monitor for reduced efficacy of either drug. Consider an alternative bladder agent if xerostomia relief is compromised.
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?
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Other interactions of Darifenacin
Other interactions of Cevimeline
- Amitriptyline + Cevimeline Moderate
- Atenolol-chlorthalidone + Cevimeline Moderate
- Atenolol + Cevimeline Moderate
- Atropine + Cevimeline Moderate
- Betaxolol + Cevimeline Moderate
- Bethanechol + Cevimeline Moderate
Frequently asked questions
Can I take Cevimeline with Darifenacin?
MediHelp rates the interaction as moderate. Cevimeline and Darifenacin 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. Cevimeline is a muscarinic agonist and darifenacin is a muscarinic antagonist, so they work against each other. The benefit of cevimeline on dry mouth may be reduced and darifenacin efficacy may be blunted.
How serious is the interaction between Cevimeline and Darifenacin?
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 either drug. Consider an alternative bladder agent if xerostomia relief is compromised.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clarithromycin. The full list is on the Darifenacin page.
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