Results from a double-blind trial suggest that off-label use of the oral antihyperglycemic drug metformin in patients with COVID-19 may decrease the risk of post-acute sequelae of SARS-CoV-2 infection ("long COVID").

View the Table: Treatments Considered for COVID-19

The investigational neutralizing IgG1 monoclonal antibody bamlanivimab (LY-CoV555; Lilly) has been granted an FDA Emergency Use Authorization (EUA) for treatment of recently diagnosed mild to moderate COVID-19 in patients who are ≥12 years old, weigh at least 40 kg, and are at high risk for progressing to severe disease and/or hospitalization (see Table 1).

The FDA has expanded the Emergency Use Authorizations (EUAs) for the mRNA-based COVID-19 vaccines manufactured by Pfizer/BioNTech (Comirnaty) and Moderna (Spikevax) and the adenovirus-based vaccine manufactured by Johnson & Johnson/Janssen to include administration of a booster dose in select populations after primary immunization with either the same COVID-19 vaccine or a different one.

View the COVID-19 Vaccine Comparison Chart

The FDA has licensed mNEXSPIKE (Moderna), an mRNA vaccine, for prevention of COVID-19 in adults ≥65 years old and in persons 12-64 years old who have a condition that puts them at high risk for severe outcomes from COVID-19. Spikevax, the original Moderna mRNA COVID-19 vaccine, remains in production2; it is licensed for use in persons ≥12 years old and is available under an Emergency Use Authorization (EUA) for children 6 months to 11 years old.

Ciprofloxacin, previously available orally (Cipro - Medical Letter, 30:11, 1988) and for ophthalmic use (Ciloxan - Medical Letter, 33:52, May 31, 1991), is now the first fluoroquinolone antibiotic to become available in the USA in an intravenous (IV) formulation. Cipro I.V. (Miles) is being promoted as an alternative to third-generation cephalosporins, aminoglycosides, and other drugs used for treatment of serious infections.

Loracarbef (Lorabid - Lilly), a new beta-lactam antibiotic with antimicrobial activity similar to the second-generation cephalosporins, has been approved by the US Food and Drug Administration for treatment of respiratory, skin, and urinary tract infection caused by susceptible organisms in both adults and children. It will probably compete with drugs such as trimethoprim-sulfamethoxazole (Bactrim, Septra, and others), amoxicillin-clavulanic acid (Augmentin), cefaclor (Ceclor), cefuroxime axetil (Ceftin), and cefprozil (Cefzil - Medical Letter, 34:63,...

The FDA has expanded the Emergency Use Authorizations (EUAs) for the mRNA-based COVID-19 vaccines manufactured by Pfizer/BioNTech (Comirnaty) and Moderna (Spikevax) to include administration of a third dose in persons ≥12 years old (Pfizer/BioNTech) or ≥18 years old (Moderna) who have undergone solid organ transplantation or have a condition that compromises the immune system to a similar extent (see Table 1).

The investigational monoclonal antibody sotrovimab (VIR-7831; GSK/Vir Biotechnology) has been granted an FDA Emergency Use Authorization (EUA) for treatment of mild to moderate COVID-19 in patients ≥12 years old who weigh ≥40 kg and are at high risk of progressing to severe disease, including hospitalization and death.1 Two other monoclonal antibody regimens are authorized for the same indication: casirivimab (REGN10933) and imdevimab (REGN10987) administered together, and bamlanivimab (LY-CoV555) and etesevimab (LYCoV016) administered together. The FDA revoked its EUA...