Drug interactions
Armodafinil + Oxybutynin
Severity: Minor
Armodafinil 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
Armodafinil is a weak CYP3A4 inducer and may slightly lower oxybutynin levels. The clinical effect is likely small.
What this interaction means in plain words
Armodafinil 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.
Armodafinil belongs to Central Nervous System; Oxybutynin belongs to Genitourinary.
Why it happens
Weak CYP3A4 induction by armodafinil increases oxybutynin metabolism.
What to do
No routine change is needed; assess bladder symptom control and adjust oxybutynin if response lessens.
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 Armodafinil 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 7 days on the web. No card needed.
Other interactions of Oxybutynin
Other interactions of Armodafinil
Frequently asked questions
Can I take Armodafinil with Oxybutynin?
MediHelp rates the interaction as minor. Armodafinil 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. Armodafinil is a weak CYP3A4 inducer and may slightly lower oxybutynin levels. The clinical effect is likely small.
How serious is the interaction between Armodafinil 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 routine change is needed; assess bladder symptom control and adjust oxybutynin if response lessens.
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.
