Final answer:
The combination of elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide is utilized for the treatment of HIV/AIDS and is part of highly active antiretroviral therapy (HAART).
Step-by-step explanation:
The combination of elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide is used for B. HIV/AIDS treatment. This combination of drugs is known as highly active antiretroviral therapy (HAART), which targets different stages of the HIV life cycle. By using a mixture of different drugs that act on separate viral targets, the risk of the virus developing resistance is greatly reduced. Elvitegravir is an integrase inhibitor, essential for preventing the HIV DNA from integrating into the cellular DNA. Cobicistat acts as a pharmacokinetic enhancer, increasing the effects of elvitegravir. Emtricitabine and tenofovir alafenamide are both reverse transcriptase inhibitors, which suppress the conversion of viral RNA into DNA, a crucial step in viral replication.