Drug interactions
Cyclizine + Darifenacin
Severity: Moderate
Cyclizine 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
Cyclizine has anticholinergic properties, and darifenacin is an antimuscarinic. Combined use can intensify dry mouth, constipation, blurred vision, urinary retention and confusion, particularly in older adults.
What this interaction means in plain words
Cyclizine 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.
Cyclizine belongs to Respiratory; Darifenacin belongs to Genitourinary.
Why it happens
Additive antimuscarinic pharmacodynamic effects.
What to do
Monitor for anticholinergic adverse effects and use the lowest effective doses. Consider a non-anticholinergic antiemetic in older or cognitively impaired patients.
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 Cyclizine
- Calcium / magnesium / potassium / sodium oxybates + Cyclizine Major
- Cyclizine + Henbane Major
- Cyclizine + Sodium oxybate Major
- Abobotulinumtoxina + Cyclizine Moderate
- Alfentanil + Cyclizine Moderate
- Alprazolam + Cyclizine Moderate
Frequently asked questions
Can I take Cyclizine with Darifenacin?
MediHelp rates the interaction as moderate. Cyclizine 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. Cyclizine has anticholinergic properties, and darifenacin is an antimuscarinic. Combined use can intensify dry mouth, constipation, blurred vision, urinary retention and confusion, particularly in older adults.
How serious is the interaction between Cyclizine 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 adverse effects and use the lowest effective doses. Consider a non-anticholinergic antiemetic in older or cognitively impaired patients.
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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