The FDA has approved Crexont (Amneal), an extended-release capsule formulation of carbidopa/levodopa, for treatment of Parkinson's disease (PD), postencephalitic parkinsonism, and parkinsonism associated with carbon monoxide or manganese intoxication. Crexont contains a combination of immediate-release carbidopa/levodopa granules and extended-release levodopa pellets. An extended-release carbidopa/levodopa oral capsule (Rytary) has been available from the same manufacturer for years; the patent for Rytary expires in 2025.

The FDA has approved Twirla (Agile Therapeutics), a transdermal contraceptive patch containing the estrogen ethinyl estradiol and the progestin levonorgestrel, for use in women with a BMI <30 kg/m². It is the second contraceptive patch to become available in the US; Xulane, a patch that delivers ethinyl estradiol and the progestin norelgestromin, has been available since 2014.

The IV antiviral drug remdesivir (Veklury – Gilead) has been available for treatment of COVID-19 in hospitalized patients since 2020. Now, the FDA has approved remdesivir for treatment of mild to moderate COVID-19 in outpatients ≥12 years old who weigh ≥40 kg and are at high risk for progression to severe disease, including hospitalization or death; they also issued an Emergency Use Authorization (EUA) allowing its use in any other high-risk outpatient who weighs ≥3.5 kg.

Teplizumab-mzwv (Tzield – Provention Bio), an anti-CD3 monoclonal antibody, has been approved by the FDA to delay the onset of stage 3 type 1 diabetes in patients ≥8 years old who have stage 2 type 1 diabetes. It is the first drug to become available in the US that delays the onset of type 1 diabetes.

The FDA has approved lumateperone (Caplyta — Intracellular Therapies), an oral second-generation antipsychotic, for once-daily treatment of schizophrenia in adults. It is the 13th second-generation antipsychotic drug to be approved by the FDA for this indication.

The FDA has approved ganaxolone (Ztalmy – Marinus) for oral treatment of seizures associated with cyclin-dependent kinase-like 5 (CDKL5) deficiency disorder in patients ≥2 years old. It is the first drug to be approved in the US for this indication.

American College of Cardiology/American Heart Association (ACC/AHA) guidelines for treatment of hypertension were last published in 2018. Treatment of hypertensive urgencies and emergencies is not discussed here.

View the Comparison Chart: Some Drugs for Irritable Bowel Syndrome with Diarrhea (IBS-D)

View Comparison Table: Some Drugs for Maintenance Treatment of Opioid Use Disorder

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").