Drug interactions
Avanafil + Indinavir
Severity: Contraindicated
Avanafil and Indinavir: 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
Indinavir is a strong CYP3A4 inhibitor and can greatly increase avanafil exposure. This may cause serious hypotension, syncope, visual changes and priapism.
What this interaction means in plain words
Avanafil and Indinavir 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.
Why it happens
Inhibition of CYP3A4 metabolism of avanafil.
What to do
Avoid the combination; use an alternative erectile dysfunction therapy.
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 Avanafil
- Amyl nitrite + Avanafil Contraindicated
- Atazanavir + Avanafil Contraindicated
- Avanafil + Clarithromycin Contraindicated
- Avanafil + Conivaptan Contraindicated
- Avanafil + Darunavir Contraindicated
- Avanafil + Fosamprenavir Contraindicated
Frequently asked questions
Can I take Avanafil with Indinavir?
MediHelp rates the interaction as contraindicated. Avanafil and Indinavir 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. Indinavir is a strong CYP3A4 inhibitor and can greatly increase avanafil exposure. This may cause serious hypotension, syncope, visual changes and priapism.
How serious is the interaction between Avanafil and Indinavir?
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 the combination; use an alternative erectile dysfunction therapy.
What other medicines interact with Avanafil?
MediHelp also lists interactions of Avanafil with, for example, Amyl nitrite, Atazanavir, Clarithromycin. The full list is on the Avanafil page.
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