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Drug interactions

Midazolam intranasal + Oxybutynin

Severity: Moderate

Midazolam intranasal 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

Oxybutynin may modestly raise midazolam exposure through CYP3A4 inhibition, and both can cause sedation and cognitive impairment. Combined CNS depression can prolong sedation and, rarely, impair breathing.

What this interaction means in plain words

Midazolam intranasal 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.

Evidence level: Low

Why it happens

Weak CYP3A4 inhibition by oxybutynin plus additive CNS depressant effects.

What to do

Monitor sedation and respiratory status after midazolam dosing, and avoid additional CNS depressants where possible.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Midazolam intranasal with Oxybutynin?

MediHelp rates the interaction as moderate. Midazolam intranasal 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. Oxybutynin may modestly raise midazolam exposure through CYP3A4 inhibition, and both can cause sedation and cognitive impairment. Combined CNS depression can prolong sedation and, rarely, impair breathing.

How serious is the interaction between Midazolam intranasal 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 sedation and respiratory status after midazolam dosing, and avoid additional CNS depressants where possible.

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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