Generics A new study published in the Annals of Internal Medicine that provides a snapshot of a simplified cost/benefit analysis of the potential economic savings gained by use of generic antiretroviral therapy to treat people with HIV/AIDS versus the slightly reduced efficacy of the drugs prompted advocates from the USA-based AIDS Healthcare Foundation (AHF) to reiterate its call on Gilead Sciences, a key maker of branded AIDS drugs, to reduce pricing on its key AIDS drugs such as Atripla (efavirenz/emtricitabine/tenofovir disoproxil fumarate).and Stribild (elvitegravir, cobicistat, emtricitabine and tenofovir disoproxil fumarate), as patents expire. 16 January 2013