Drug interactions
Darifenacin + Scopolamine
Severity: Moderate
Darifenacin and Scopolamine: 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 are muscarinic antagonists, so combined use increases anticholinergic effects including dry mouth, constipation, blurred vision, urinary retention and cognitive impairment.
What this interaction means in plain words
Darifenacin and Scopolamine 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.
Darifenacin belongs to Genitourinary; Scopolamine belongs to Respiratory.
Why it happens
Additive muscarinic receptor antagonism.
What to do
Monitor for anticholinergic adverse effects and cognitive changes, and avoid duplication of antimuscarinic therapy when possible, especially in older adults.
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 Scopolamine
Other interactions of Darifenacin
Frequently asked questions
Can I take Darifenacin with Scopolamine?
MediHelp rates the interaction as moderate. Darifenacin and Scopolamine 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 are muscarinic antagonists, so combined use increases anticholinergic effects including dry mouth, constipation, blurred vision, urinary retention and cognitive impairment.
How serious is the interaction between Darifenacin and Scopolamine?
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 adverse effects and cognitive changes, and avoid duplication of antimuscarinic therapy when possible, especially in older adults.
What other medicines interact with Scopolamine?
MediHelp also lists interactions of Scopolamine with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Scopolamine page.
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