Drug interactions
Darifenacin + Sirolimus
Severity: Minor
Darifenacin and Sirolimus: 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
Darifenacin is not a clinically relevant CYP3A4 or P-gp inhibitor, so a meaningful increase in sirolimus levels is not expected.
What this interaction means in plain words
Darifenacin and Sirolimus have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Darifenacin belongs to Genitourinary; Sirolimus belongs to Miscellaneous.
Why it happens
No established mechanism for a clinically significant effect.
What to do
No dose change is needed; keep routine sirolimus trough monitoring.
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 Darifenacin
Other interactions of Sirolimus
- Adenovirus types 4 and 7 live + Sirolimus Contraindicated
- Bcg vaccine live + Sirolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Sirolimus Contraindicated
- Ketoconazole + Sirolimus Contraindicated
- Levoketoconazole + Sirolimus Contraindicated
- Measles mumps and rubella vaccine live + Sirolimus Contraindicated
Frequently asked questions
Can I take Darifenacin with Sirolimus?
MediHelp rates the interaction as minor. Darifenacin and Sirolimus have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Darifenacin is not a clinically relevant CYP3A4 or P-gp inhibitor, so a meaningful increase in sirolimus levels is not expected.
How serious is the interaction between Darifenacin and Sirolimus?
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 dose change is needed; keep routine sirolimus trough monitoring.
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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