Drug interactions
Nevirapine + Oxybutynin
Severity: Minor
Nevirapine and Oxybutynin: 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
Nevirapine induces CYP3A4 and may reduce oxybutynin concentrations, potentially weakening its effect on bladder symptoms.
What this interaction means in plain words
Nevirapine and Oxybutynin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Nevirapine belongs to Anti Virals; Oxybutynin belongs to Genitourinary.
Why it happens
Nevirapine induces CYP3A4, increasing oxybutynin metabolism.
What to do
No empirical change is needed. Reassess response and titrate the oxybutynin dose if efficacy is lost.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Nevirapine and Oxybutynin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Oxybutynin
Other interactions of Nevirapine
- Elbasvir / grazoprevir + Nevirapine Contraindicated
- Nevirapine + Ranolazine Contraindicated
- Nevirapine + St john's wort Contraindicated
- Abemaciclib + Nevirapine Major
- Acalabrutinib + Nevirapine Major
- Amobarbital + Nevirapine Major
Frequently asked questions
Can I take Nevirapine with Oxybutynin?
MediHelp rates the interaction as minor. Nevirapine and Oxybutynin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Nevirapine induces CYP3A4 and may reduce oxybutynin concentrations, potentially weakening its effect on bladder symptoms.
How serious is the interaction between Nevirapine and Oxybutynin?
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 empirical change is needed. Reassess response and titrate the oxybutynin dose if efficacy is lost.
What other medicines interact with Oxybutynin?
MediHelp also lists interactions of Oxybutynin with, for example, Bethanechol, Clozapine, Potassium chloride. The full list is on the Oxybutynin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
