Pfizer Inc. (NYSE: PFE) announced today that it will further strengthen its commitment to United States manufacturing with a $120 million investment at its Kalamazoo, Michigan, facility, enabling U.S.-based production in support of its COVID-19 oral treatment, PAXLOVIDTM (nirmatrelvir [PF-07321332] tablets and ritonavir tablets). The investment will expand the production of active pharmaceutical ingredient (API) and registered starting materials (RSMs) used in the manufacture of nirmatrelvir, a novel main protease (Mpro) inhibitor originating in Pfizer’s laboratories, which will create more than 250 additional high-skilled jobs at Pfizer’s Kalamazoo site.