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Drug interactions

Midazolam + Mobocertinib

Severity: Moderate

Midazolam and Mobocertinib: 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

Mobocertinib induces CYP3A4 and may lower midazolam concentrations, reducing sedative or anxiolytic effect. Oral midazolam is particularly affected because of its large first-pass metabolism.

What this interaction means in plain words

Midazolam and Mobocertinib 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: Moderate

Why it happens

Mobocertinib induction of CYP3A4 increases the hepatic and intestinal metabolism of midazolam.

What to do

Monitor for reduced midazolam effect and titrate the dose to clinical response, or choose a drug that is not CYP3A4-dependent, such as lorazepam. Follow product labeling for CYP3A substrates.

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 with Mobocertinib?

MediHelp rates the interaction as moderate. Midazolam and Mobocertinib 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. Mobocertinib induces CYP3A4 and may lower midazolam concentrations, reducing sedative or anxiolytic effect. Oral midazolam is particularly affected because of its large first-pass metabolism.

How serious is the interaction between Midazolam and Mobocertinib?

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 reduced midazolam effect and titrate the dose to clinical response, or choose a drug that is not CYP3A4-dependent, such as lorazepam. Follow product labeling for CYP3A substrates.

What other medicines interact with Midazolam?

MediHelp also lists interactions of Midazolam with, for example, Atazanavir, Cobicistat, Darunavir. The full list is on the Midazolam page.

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