Evigrade
MajorAntiretroviral, non-nucleoside reverse transcriptase inhibitor (NNRTI)×HMG-CoA reductase inhibitors (statins)

Updated · Methodology

Mechanism

Efavirenz induces CYP3A4. Simvastatin falls 60% – lipid-lowering effect lost.

Symptoms

LDL returns to baseline.

Management

Alternative statin – pravastatin or rosuvastatin.

Check the full regimen, not just this pair

Opens the checker with these two drugs prefilled. Add the rest of the regimen and recompute additive risks.

Open checker

Summary of a multi-drug list →

Medicine list: everything you take in one place →

Sources

Other interactions with Efavirenz

Other interactions with Simvastatin