What are Nirmatrelvir/Ritonavir Tablets Hong Kong?   Nirmatrelvir and Ritonavir Tablets are a combination of medications used in the treatment of COVID-19. Nirmatrelvir Tablets is an antiviral medication that inhibits the replication of SARS-CoV-2, the virus causing COVID-19, while Ritonavir Tablets helps increase the concen...