Expanded ≥3-drug PEP regimens:

Preferred:
Lopinavir/ritonavir (Kaletra) + basic 2-drug regimen

Alternative:
Atazanavir* ± ritonavir
Fosamprenavir ± ritonavir + basic 2-drug regimen
Indinavir** ± ritonavir
Saquinavir + ritonavir
Nelfinavir
Efavirenz***

*If atazanavir is coadministered with tenofovir, ritonavir must be included in the PEP regimen.
**Avoid in late pregancy.
***Teratogenic; avoid in pregnancy