Reatix Kit 1 Tab Atazanavir 300 Mg / 1 Tab Ritonavir 100 Mg + 1 Tab Tenofovir 300 Mg / Emtricitabine 200 Mg is a combination medication used in the treatment of HIV-1 infection. It contains four active ingredients: Atazanavir, Ritonavir, Tenofovir, and Emtricitabine.