The FDA has approved a 12.45% gel formulation of the anticholinergic drug sofpironium (Sofdra – Botanix) for treatment of primary axillary hyperhidrosis (excessive underarm sweating) in patients ≥9 years old.

Primary hypothyroidism is usually the result of Hashimoto's thyroiditis, thyroidectomy for hyperthyroidism, goiter or cancer, or radioactive iodine therapy for hyperthyroidism.

Antiretroviral therapy is recommended for all HIV-infected patients, both to reduce the risk of disease progression and to prevent transmission of the virus to others. Various guidelines for treatment of HIV infection are available.

Treatment of community-acquired pneumonia (CAP) is usually empiric, with selected antibiotic regimens directed against some of the most common causative pathogens. Recommended empiric regimens are listed in Table 2; recommended antibiotic dosages for treatment of CAP are listed in Tables 3 and 4. Joint guidelines for treatment of CAP by the American Thoracic Society and the Infectious Diseases Society of America (ATS/IDSA) were updated in 2019.

Primary hypothyroidism is usually the result of Hashimoto's (autoimmune) thyroiditis, thyroidectomy, or radioactive iodine therapy. Treatment of hypothyroidism with replacement doses of thyroid hormone is usually lifelong. Levothyroxine (LT4; synthetic thyroxine; Synthroid, and others) is the drug of choice.1

An FDA panel has recommended that stronger warnings about hepatotoxicity be added to the labeling for acetaminophen (www.fda.gov, search "acetaminophen hepatotoxicity").

The FDA has approved nivolumab (Opdivo – BMS), an IV programmed death receptor-1 (PD-1) blocking antibody, for treatment of unresectable or metastatic melanoma that has progressed following treatment with ipilimumab (and a BRAF inhibitor in patients who are BRAF V600 mutation positive) and for treatment of metastatic squamous non-small cell lung cancer (NSCLC) that has progressed on or after platinum-based chemotherapy. It is the second PD-1 inhibitor to be marketed in the US after pembrolizumab (Keytruda), and the first to be approved for treatment of NSCLC.

The FDA has approved two new drugs for treatment of adults with acute bacterial skin and skin structure infections caused by susceptible gram-positive bacteria. Dalbavancin (Dalvance – Durata) is a long-acting intravenous (IV) lipoglycopeptide antibiotic similar to telavancin (Vibativ). Tedizolid phosphate (Sivextro – Cubist) is an IV and oral oxazolidinone antibacterial drug similar to linezolid (Zyvox). A third IV antibiotic, oritavancin (Orbactiv), recently approved by the FDA for the same indication, will be reviewed in a future...

The FDA has approved IV amisulpride (Barhemsys – Acacia), a selective dopamine-2 and -3 (D₂/D₃) receptor antagonist, for prevention and treatment of postoperative nausea and vomiting (PONV) in adults. It is the first antiemetic to be approved for rescue treatment of PONV in patients who have symptoms despite receiving antiemetic prophylaxis. Oral formulations of amisulpride are available in Europe for treatment of schizophrenia and acute psychotic episodes.

The FDA has licensed two new pneumococcal conjugate vaccines (PCVs) for prevention of invasive pneumococcal disease in adults: Prevnar 20 (PCV20; Pfizer), which contains antigens from 20 serotypes of pneumococcus, and Vaxneuvance (PCV15; Merck), which contains antigens from 15 serotypes. Two other pneumococcal vaccines are available in the US: Prevnar 13 (PCV13; Pfizer), a 13-valent conjugate vaccine licensed for use in persons ≥6 weeks old, and Pneumovax 23 (PPSV23; Merck), a 23-valent pneumococcal polysaccharide vaccine licensed for use in persons ≥2 years...