Drug interactions
Atropine + Darifenacin
Severity: Moderate
Atropine 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
Atropine is a potent antimuscarinic and adds to darifenacin's effects, raising the risk of dry mouth, constipation, urinary retention, tachycardia, blurred vision and delirium. Elderly patients are most vulnerable.
What this interaction means in plain words
Atropine 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.
Atropine belongs to Miscellaneous; Darifenacin belongs to Genitourinary.
Why it happens
Additive antimuscarinic receptor blockade.
What to do
Monitor for anticholinergic toxicity, including heart rate and urinary retention. Limit atropine dose and duration where possible.
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 Atropine
- Atropine + Eluxadoline Major
- Atropine + Henbane Major
- Atropine + Pramlintide Major
- Abobotulinumtoxina + Atropine Moderate
- Aclidinium + Atropine Moderate
- Amantadine + Atropine Moderate
Frequently asked questions
Can I take Atropine with Darifenacin?
MediHelp rates the interaction as moderate. Atropine 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. Atropine is a potent antimuscarinic and adds to darifenacin's effects, raising the risk of dry mouth, constipation, urinary retention, tachycardia, blurred vision and delirium. Elderly patients are most vulnerable.
How serious is the interaction between Atropine 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 anticholinergic toxicity, including heart rate and urinary retention. Limit atropine dose and duration where possible.
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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