Paxlovid Tablets 300 mg; 100 mg Nirmatrelvir-Ritonavir Dose Pack (2-Packs x 10/Box)Paxlovid is an oral medication used for the treatment of COVID 19 in patients who are at high risk for severe disease. It consists of two components: Nirmatrelvir and Ritonavir. Nirmatrelvir: This is a protease inhibitor that works by blocking the activity of the SARS CoV 2 main protease, an enzyme critical for viral replication. By inhibiting this enzyme, Nirmatrelvir helps to prevent the virus from multiplying and spreading within the body.