Drug interactions
Darunavir + Midazolam
Severity: Contraindicated
Darunavir and Midazolam: contraindicated 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
Darunavir, usually boosted with ritonavir or cobicistat, inhibits CYP3A and raises midazolam exposure considerably. Oral midazolam may cause prolonged sedation and respiratory depression.
What this interaction means in plain words
Darunavir and Midazolam are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Darunavir belongs to Anti Virals; Midazolam belongs to Central Nervous System.
Why it happens
Boosted darunavir inhibits CYP3A4 metabolism of midazolam.
What to do
Avoid oral midazolam. If parenteral midazolam is needed, lower the dose and monitor respiratory function.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Midazolam
- Atazanavir + Midazolam Contraindicated
- Cobicistat + Midazolam Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Midazolam Contraindicated
- Fosamprenavir + Midazolam Contraindicated
- Indinavir + Midazolam Contraindicated
- Itraconazole + Midazolam Contraindicated
Other interactions of Darunavir
- Alfuzosin + Darunavir Contraindicated
- Avanafil + Darunavir Contraindicated
- Darunavir + Dronedarone Contraindicated
- Darunavir + Eletriptan Contraindicated
- Darunavir + Ergotamine Contraindicated
- Darunavir + Flibanserin Contraindicated
Frequently asked questions
Can I take Darunavir with Midazolam?
MediHelp rates the interaction as contraindicated. Darunavir and Midazolam are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Darunavir, usually boosted with ritonavir or cobicistat, inhibits CYP3A and raises midazolam exposure considerably. Oral midazolam may cause prolonged sedation and respiratory depression.
How serious is the interaction between Darunavir and Midazolam?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid oral midazolam. If parenteral midazolam is needed, lower the dose and monitor respiratory function.
What other medicines interact with Midazolam?
MediHelp also lists interactions of Midazolam with, for example, Atazanavir, Cobicistat, Elvitegravir / cobicistat / emtricitabine / tenofovir df. The full list is on the Midazolam page.
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