Drug interactions
Oxybutynin + Thiothixene
Severity: Moderate
Oxybutynin and Thiothixene: moderate 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
Thiothixene has some anticholinergic activity, so combined use with oxybutynin may add to antimuscarinic effects. Reduced gastric motility could also alter absorption of oral antipsychotics, though this is poorly established.
What this interaction means in plain words
Oxybutynin and Thiothixene can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive antimuscarinic effects, with possible delayed gastrointestinal absorption.
What to do
Monitor for anticholinergic effects and for changes in psychiatric symptom control, adjusting doses as needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Oxybutynin
Frequently asked questions
Can I take Oxybutynin with Thiothixene?
MediHelp rates the interaction as moderate. Oxybutynin and Thiothixene can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Thiothixene has some anticholinergic activity, so combined use with oxybutynin may add to antimuscarinic effects. Reduced gastric motility could also alter absorption of oral antipsychotics, though this is poorly established.
How serious is the interaction between Oxybutynin and Thiothixene?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic effects and for changes in psychiatric symptom control, adjusting doses as needed.
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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