The FDA has approved ozanimod (Zeposia – Celgene), a sphingosine 1-phosphate (S1P) receptor modulator, for treatment of adults with relapsing forms of multiple sclerosis (MS), including clinically isolated syndrome (initial neurological episode), relapsing-remitting disease, and active secondary progressive MS (SPMS). It is the third oral S1P receptor modulator to be approved in the US for treatment of relapsing forms of MS; siponimod (Mayzent) is also indicated for use in adults, and fingolimod (Gilenya) is approved for use in patients ≥10 years old.

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 injectable glucagon-like peptide-1 (GLP-1) receptor agonist semaglutide, previously approved by the FDA as Ozempic to treat type 2 diabetes and to reduce the risk of major adverse cardiovascular events in adults with type 2 diabetes and established cardiovascular disease, has now been approved in a higher dose as Wegovy (Novo Nordisk) for chronic weight management in adults with or without type 2 diabetes who have a body mass index (BMI) ≥30 kg/m2 or a BMI ≥27 kg/m2 and ≥1 weight-related comorbidity (e.g., hypertension, dyslipidemia). An oral formulation of semaglutide...

The FDA has approved fenfluramine oral solution (Fintepla – Zogenix) for treatment of seizures in patients ≥2 years old with Dravet syndrome. It is the third drug to be approved for this indication. Stiripentol (Diacomit) and cannabidiol (Epidiolex), a purified product derived from marijuana, were approved earlier.

The FDA has approved Winlevi (Sun), a 1% cream formulation of the androgen receptor inhibitor clascoterone, for treatment of acne vulgaris in patients ≥12 years old. It is the first topical androgen receptor inhibitor to be approved by the FDA.

The FDA has approved the injectable interleukin (IL)-17A/17F antagonist bimekizumab-bkzx (Bimzelx – UCB) for treatment of moderate to severe plaque psoriasis in adults who are candidates for systemic treatment or phototherapy. Bimekizumab is the first IL-17A/17F antagonist to be approved in the US. It was approved in the European Union for the same indication in 2021.

The FDA has approved Symbravo (Axsome), an oral fixed-dose combination of the nonsteroidal anti-inflammatory drug (NSAID) meloxicam and the 5-HT_1B/1D receptor agonist (triptan) rizatriptan (Maxalt, and generics), for acute treatment of migraine with or without aura in adults. It is the second combination of an NSAID and a triptan to be approved for migraine treatment. An oral fixed-dose combination of sumatriptan and naproxen (Treximet, and generics) is approved for use in patients ≥12 years old.

The FDA has approved orforglipron (Foundayo – Lilly), an oral small-molecule, nonpeptide glucagon-like peptide-1 (GLP-1) receptor agonist, to reduce excess body weight and maintain weight reduction long term in adults with obesity, or with overweight and at least one weight-related comorbidity. Orforglipron is the second oral GLP-1 receptor agonist to be approved in the US for this indication; an oral formulation of the peptide semaglutide (Wegovy) was approved in 2025.

Enlicitide (Lipfendra – Merck), an oral proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitor, has been approved by the FDA to reduce low-density lipoprotein cholesterol (LDL-C) in adults with hypercholesterolemia, including heterozygous familial hypercholesterolemia (HeFH). It is the first oral PCSK9 inhibitor to be approved in the US; the other FDA-approved PCSK9 inhibitors (alirocumab [Praluent], evolocumab [Repatha], and lerodalcibep [Lerochol]) and the PCSK9-directed small interfering RNA inclisiran (Leqvio) are injected subcutaneously. Lipfendra was approved under...

Clostridioides (formerly Clostridium) difficile infection (CDI) is the most common infectious cause of healthcare-associated diarrhea in adults. Guidelines on management of CDI have recently been updated.