Drug interactions
Droperidol + Oxybutynin
Severity: Moderate
Droperidol and Oxybutynin: 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
Droperidol has some antimuscarinic activity and sedative effects that may add to oxybutynin's anticholinergic and central effects. Droperidol also prolongs the QT interval, which is not offset by oxybutynin, so the combination calls for attention in at-risk patients.
What this interaction means in plain words
Droperidol and Oxybutynin 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 anticholinergic and sedative effects; droperidol's QT risk is independent of oxybutynin.
What to do
Monitor for sedation, confusion and anticholinergic effects, and check ECG and electrolytes when droperidol is given to patients with QT risk factors.
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 Droperidol with Oxybutynin?
MediHelp rates the interaction as moderate. Droperidol and Oxybutynin 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. Droperidol has some antimuscarinic activity and sedative effects that may add to oxybutynin's anticholinergic and central effects. Droperidol also prolongs the QT interval, which is not offset by oxybutynin, so the combination calls for attention in at-risk patients.
How serious is the interaction between Droperidol and Oxybutynin?
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 sedation, confusion and anticholinergic effects, and check ECG and electrolytes when droperidol is given to patients with QT risk factors.
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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