The FDA has approved tenapanor (Ibsrela - Ardelyx), a sodium/hydrogen exchanger 3 (NHE3) inhibitor, for twice-daily oral treatment of irritable bowel syndrome with constipation (IBS-C) in adults. Tenapanor is the first NHE3 inhibitor to become available in the US.

The FDA has approved tirzepatide (Mounjaro – Lilly), a peptide hormone with activity at both glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptors, to improve glycemic control in adults with type 2 diabetes. Tirzepatide, which is injected subcutaneously once weekly, is the first dual GIP/GLP-1 receptor agonist to become available in the US. Selective GIP receptor agonists are not available in the US; GLP-1 receptor agonists have been available for years.

Bexagliflozin (Brenzavvy – TheracosBio), a sodium-glucose cotransporter 2 (SGLT2) inhibitor, has been approved by the FDA to improve glycemic control in adults with type 2 diabetes. It is the fifth SGLT2 inhibitor to be approved in the US for this indication (see Table 4).

The FDA has approved daprodustat (Jesduvroq – GSK), a hypoxia-inducible factor prolyl hydroxylase inhibitor (HIF-PHI), for oral treatment of anemia due to chronic kidney disease (CKD) in adults who have been on dialysis for at least 4 months. It is the first HIF-PHI and the first oral drug to be approved in the US for this indication.

The FDA has approved Phexxi (Evofem), a nonhormonal prescription-only vaginal gel containing lactic acid, citric acid, and potassium bitartrate, for prevention of pregnancy. The gel is intended for on-demand contraception; it is not effective when used after intercourse. It was previously approved for use as a vaginal lubricant (Amphora), but was never marketed.

The FDA has approved pitolisant (Wakix – Harmony), a histamine-3 (H₃)-receptor antagonist/inverse agonist, for treatment of excessive daytime sleepiness (EDS) or cataplexy in adults with narcolepsy. It is the first H₃-receptor antagonist/inverse agonist to become available in the US and the first non-controlled substance to receive FDA approval for these indications. Pitolisant has been available in Europe since 2016.

The FDA has licensed Penbraya (Pfizer), a pentavalent polysaccharide conjugate meningococcal vaccine, for prevention of invasive meningococcal disease caused by Neisseria meningitidis serogroups A, B, C, W, or Y (MenABCWY) in persons 10-25 years old. Penbraya is the only meningococcal vaccine that contains all five of these serogroups. Two quadrivalent polysaccharide conjugate meningococcal vaccines containing serogroups A, C, W, and Y (MenACWY; Menveo, MenQuadfi) and two meningococcal serogroup B vaccines (MenB; Bexsero, Trumenba) are available in the US (see Table...

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.

Lyme disease in the US is caused by the spirochete Borrelia burgdorferi, which is transmitted to humans by Ixodes scapularis (blacklegged [deer] tick) and I. pacificus (western blacklegged tick). Most cases of Lyme disease occur in late spring and early summer in northeastern and mid-Atlantic states, the upper Midwest, and in northern California. B. mayonii, which is also transmitted by I. scapularis, has been shown to cause a similar illness in the upper Midwest.

View the Expanded Table: Some Oral Drugs for Chronic Insomnia