Drug interactions
Oxybutynin + Rimantadine
Severity: Minor
Oxybutynin and Rimantadine: 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
Rimantadine can cause CNS effects such as dizziness, insomnia and confusion, and oxybutynin may add to central anticholinergic effects. Older patients are most susceptible.
What this interaction means in plain words
Oxybutynin and Rimantadine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Oxybutynin belongs to Genitourinary; Rimantadine belongs to Anti Virals.
Why it happens
Additive CNS adverse effects; anticholinergic activity of oxybutynin.
What to do
Monitor for confusion and dizziness in older patients and reduce doses if CNS effects occur.
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
Other interactions of Rimantadine
Frequently asked questions
Can I take Oxybutynin with Rimantadine?
MediHelp rates the interaction as minor. Oxybutynin and Rimantadine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Rimantadine can cause CNS effects such as dizziness, insomnia and confusion, and oxybutynin may add to central anticholinergic effects. Older patients are most susceptible.
How serious is the interaction between Oxybutynin and Rimantadine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for confusion and dizziness in older patients and reduce doses if CNS effects occur.
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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