Drug interactions
Artemether / lumefantrine + Oxybutynin
Severity: Minor
Artemether / lumefantrine 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
Artemether has CYP3A4 inducing effects and lumefantrine can modulate CYP enzymes, so oxybutynin exposure may be reduced during a short antimalarial course. The effect is likely small and transient.
What this interaction means in plain words
Artemether / lumefantrine 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.
Why it happens
Induction of CYP3A4 by artemether/lumefantrine may increase oxybutynin metabolism.
What to do
No dose change is needed; reassess bladder symptoms only if response appears reduced.
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 Oxybutynin
Frequently asked questions
Can I take Artemether / lumefantrine with Oxybutynin?
MediHelp rates the interaction as minor. Artemether / lumefantrine 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. Artemether has CYP3A4 inducing effects and lumefantrine can modulate CYP enzymes, so oxybutynin exposure may be reduced during a short antimalarial course. The effect is likely small and transient.
How serious is the interaction between Artemether / lumefantrine 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 dose change is needed; reassess bladder symptoms only if response appears reduced.
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.
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