Synthivan 300 mg/100 mg (Atazanavir/Ritonavir) is a combination medication used to treat HIV-1 infection. It contains two active ingredients, atazanavir and ritonavir, which work together to reduce the amount of HIV in the body. Synthivan is easy to take and helps reduce the risk of HIV-1 related illness. Buy Synthivan today from our online pharmacy for fast and reliable delivery in the USA.