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Drug interactions

Flibanserin + Midazolam

Severity: Major

Flibanserin and Midazolam: major interaction.

Last updated Sources: US FDA label

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

Both agents cause sedation, so together they increase the risk of marked drowsiness, hypotension and syncope. Midazolam is a CYP3A4 substrate rather than an inhibitor, so the main concern is pharmacodynamic.

What this interaction means in plain words

Flibanserin and Midazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Flibanserin belongs to Genitourinary; Midazolam belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS depression and hypotension.

What to do

Avoid combining where possible. If midazolam is needed for a procedure, delay flibanserin and monitor sedation and blood pressure.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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

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References

Frequently asked questions

Can I take Flibanserin with Midazolam?

MediHelp rates the interaction as major. Flibanserin and Midazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both agents cause sedation, so together they increase the risk of marked drowsiness, hypotension and syncope. Midazolam is a CYP3A4 substrate rather than an inhibitor, so the main concern is pharmacodynamic.

How serious is the interaction between Flibanserin and Midazolam?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining where possible. If midazolam is needed for a procedure, delay flibanserin and monitor sedation and blood pressure.

What other medicines interact with Flibanserin?

MediHelp also lists interactions of Flibanserin with, for example, Atazanavir, Ceritinib, Clarithromycin. The full list is on the Flibanserin page.

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