Drug interactions
Oxybutynin transdermal + Prochlorperazine
Severity: Moderate
Oxybutynin transdermal and Prochlorperazine: 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
Prochlorperazine has anticholinergic activity, so with oxybutynin it may add to dry mouth, constipation, urinary retention, blurred vision and confusion. Transdermal oxybutynin still yields systemic antimuscarinic exposure, though less than oral dosing, so an additive burden is plausible.
What this interaction means in plain words
Oxybutynin transdermal and Prochlorperazine 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.
Why it happens
Additive antimuscarinic pharmacodynamic effects.
What to do
Monitor for anticholinergic adverse effects, particularly cognitive effects and urinary retention in older patients. Reduce doses or choose alternatives if symptoms emerge.
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 Prochlorperazine
- Dronedarone + Prochlorperazine Contraindicated
- Ibutilide + Prochlorperazine Contraindicated
- Nilotinib + Prochlorperazine Contraindicated
- Pimozide + Prochlorperazine Contraindicated
- Prochlorperazine + Thioridazine Contraindicated
- Amiodarone + Prochlorperazine Major
Frequently asked questions
Can I take Oxybutynin transdermal with Prochlorperazine?
MediHelp rates the interaction as moderate. Oxybutynin transdermal and Prochlorperazine 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. Prochlorperazine has anticholinergic activity, so with oxybutynin it may add to dry mouth, constipation, urinary retention, blurred vision and confusion. Transdermal oxybutynin still yields systemic antimuscarinic exposure, though less than oral dosing, so an additive burden is plausible.
How serious is the interaction between Oxybutynin transdermal and Prochlorperazine?
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, particularly cognitive effects and urinary retention in older patients. Reduce doses or choose alternatives if symptoms emerge.
What other medicines interact with Prochlorperazine?
MediHelp also lists interactions of Prochlorperazine with, for example, Dronedarone, Ibutilide, Nilotinib. The full list is on the Prochlorperazine page.
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