Efavirenz ATV 436

Interaction Color Code
Clinical Bottom Line
Do not coadminister: Potential for reduced levels of atazanavir
Drug 1
Drug 1 dose
600 mg daily 2 hours after atazanavir and ritonavir d 7-20
Drug 2
Drug 2 dose
400 mg daily d 1-6, then 300 mg daily days 7_-20 with ritonavir 100 mg daily
Drug 2 effect

Atazanavir auc increased 39%, Cmax increased 48%, Cmin increased 14%.

Clinical Effects

Potential loss of antiviral efficacy

Management

Use alternative agents

Import ID
436