Atazanavir EFV 790

Reyataz label

Interaction Color Code
Clinical Bottom Line
Adjust dosing to avoid reduced levels of atazanavir
Drug 1
Drug 1 dose
400 mg daily on days 1-20
Drug 1 effect

Atazanavir AUC decreased 74%, Cmax decreased 59%, Cmin decreased 93%, half-life: decreased 27%

Drug 2
Drug 2 dose
600 mg daily on days 7-20
Drug 2 effect

No significant change

Clinical Effects

Potential loss of antiretroviral efficacy

Management

In ART-naive patients standard dose efavirenz may be used with atazanavir 400 mg boosted with ritonavir 100 mg once daily. Do not coadminister efavirenz plus ritonavir-boosted atazanavir in ART-experienced patients. Do not coadminister efavirenz with unboosted atazanavir.

Import ID
790