Efavirenz Simvastatin 378

Interaction Color Code
Clinical Bottom Line
Adjust dosing to avoid reduced levels of simvastatin
Drug 1
Drug 1 dose
600 mg x 15 days
Drug 1 effect

No significant change

Drug 2
Drug 2 dose
40 mg daily x 4 days
Drug 2 effect

Simvastatin AUC decreased 68%; Cmax decreased 72%; Cmin decreased 45%

Clinical Effects

Decreased simvastatin effects

Management

Monitor statin efficacy. May need to increase simvastatin dose

Import ID
378