Drug interactions
Atorvastatin + Danazol
Severity: Major
Atorvastatin and Danazol: major 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
Danazol inhibits CYP3A4 and may increase atorvastatin levels. Raised statin exposure increases the likelihood of myopathy and rhabdomyolysis.
What this interaction means in plain words
Atorvastatin and Danazol 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.
Why it happens
Danazol inhibits CYP3A4-mediated metabolism of atorvastatin.
What to do
Use the lowest effective atorvastatin dose and counsel patients to report muscle symptoms; check CK if symptoms occur. Consider an alternative statin less reliant on CYP3A4, such as rosuvastatin or pravastatin.
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?
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Other interactions of Atorvastatin
- Atorvastatin + Tipranavir Contraindicated
- Atazanavir + Atorvastatin Major
- Atorvastatin + Clarithromycin Major
- Atorvastatin + Cobicistat Major
- Atorvastatin + Cyclosporin Major
- Atorvastatin + Cyclosporine Major
Frequently asked questions
Can I take Atorvastatin with Danazol?
MediHelp rates the interaction as major. Atorvastatin and Danazol 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. Danazol inhibits CYP3A4 and may increase atorvastatin levels. Raised statin exposure increases the likelihood of myopathy and rhabdomyolysis.
How serious is the interaction between Atorvastatin and Danazol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective atorvastatin dose and counsel patients to report muscle symptoms; check CK if symptoms occur. Consider an alternative statin less reliant on CYP3A4, such as rosuvastatin or pravastatin.
What other medicines interact with Atorvastatin?
MediHelp also lists interactions of Atorvastatin with, for example, Tipranavir, Atazanavir, Clarithromycin. The full list is on the Atorvastatin page.
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