Drug interactions
Miconazole vaginal + Tolterodine
Severity: Minor
Miconazole vaginal and Tolterodine: minor 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
Miconazole is a CYP3A4 inhibitor, but systemic absorption from vaginal preparations is low. Clinically meaningful increases in tolterodine exposure are unlikely, and CYP2D6 provides the main pathway in most patients.
What this interaction means in plain words
Miconazole vaginal and Tolterodine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Theoretical CYP3A4 inhibition by absorbed miconazole reducing tolterodine metabolism.
What to do
No routine action is needed. Watch for increased anticholinergic effects in CYP2D6 poor metabolizers or with prolonged use.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Tolterodine
Frequently asked questions
Can I take Miconazole vaginal with Tolterodine?
MediHelp rates the interaction as minor. Miconazole vaginal and Tolterodine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Miconazole is a CYP3A4 inhibitor, but systemic absorption from vaginal preparations is low. Clinically meaningful increases in tolterodine exposure are unlikely, and CYP2D6 provides the main pathway in most patients.
How serious is the interaction between Miconazole vaginal and Tolterodine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine action is needed. Watch for increased anticholinergic effects in CYP2D6 poor metabolizers or with prolonged use.
What other medicines interact with Tolterodine?
MediHelp also lists interactions of Tolterodine with, for example, Clarithromycin, Clozapine, Cobicistat. The full list is on the Tolterodine page.
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