Drug interactions
Atazanavir + Eplerenone
Severity: Contraindicated
Atazanavir and Eplerenone: 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
Atazanavir is a strong CYP3A4 inhibitor, and eplerenone is a sensitive CYP3A4 substrate. Eplerenone exposure can rise markedly, increasing the risk of hyperkalemia. Labeling contraindicates eplerenone with strong CYP3A4 inhibitors.
What this interaction means in plain words
Atazanavir and Eplerenone 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.
Atazanavir belongs to Anti Virals; Eplerenone belongs to Cardiovascular.
Why it happens
Strong CYP3A4 inhibition by atazanavir reducing eplerenone metabolism.
What to do
Do not combine; choose a different antiretroviral or a different mineralocorticoid antagonist such as spironolactone with potassium monitoring.
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 Eplerenone
- Amiloride + Eplerenone Contraindicated
- Clarithromycin + Eplerenone Contraindicated
- Cobicistat + Eplerenone Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Eplerenone Contraindicated
- Ensitrelvir + Eplerenone Contraindicated
- Eplerenone + Idelalisib Contraindicated
Other interactions of Atazanavir
- Alfuzosin + Atazanavir Contraindicated
- Atazanavir + Avanafil Contraindicated
- Atazanavir + Dronedarone Contraindicated
- Atazanavir + Eletriptan Contraindicated
- Atazanavir + Ergotamine Contraindicated
- Atazanavir + Flibanserin Contraindicated
Frequently asked questions
Can I take Atazanavir with Eplerenone?
MediHelp rates the interaction as contraindicated. Atazanavir and Eplerenone 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. Atazanavir is a strong CYP3A4 inhibitor, and eplerenone is a sensitive CYP3A4 substrate. Eplerenone exposure can rise markedly, increasing the risk of hyperkalemia. Labeling contraindicates eplerenone with strong CYP3A4 inhibitors.
How serious is the interaction between Atazanavir and Eplerenone?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not combine; choose a different antiretroviral or a different mineralocorticoid antagonist such as spironolactone with potassium monitoring.
What other medicines interact with Eplerenone?
MediHelp also lists interactions of Eplerenone with, for example, Amiloride, Clarithromycin, Cobicistat. The full list is on the Eplerenone page.
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