Nirmatrelvir is an antiviral drug that, in combination with ritonavir, effective agent for the etiotropic therapy of patients mild to moderate COVID-19. The aim study was evaluate bioequivalence generic nirmatrelvir Аrpaxel ritonavir and original Paxlovid, which a nirmatrelvir/ritonavir, single dose administration healthy volunteers. Materials methods. This research open-label, randomized, two-...