The FDA has approved a delayed-release capsule formulation of valproic acid (VPA; Stavzor - Noven Therapeutics) for all of the indications for which divalproex sodium (Depakote, and others; Depakote ER) is approved: monotherapy and adjunctive therapy of complex partial seizures and simple and complex absence seizures, and adjunctive therapy in patients with multiple seizure types that include absence seizures; acute treatment of manic episodes associated with bipolar disorder; and prophylaxis of migraine headaches. In addition, valproate (valproic acid or divalproex sodium) is considered a...

Misoprostol (Cytotec, and generics), a prostaglandin E₁ analog FDA-approved for prevention of NSAID-induced gastric ulcers and, when taken with mifepristone (Mifeprex), for termination of early intrauterine pregnancy, has also been used off-label for years for medical management of first-trimester spontaneous abortion (miscarriage).

Annovera (TherapeuticsMD), a contraceptive vaginal ring that releases segesterone acetate, a synthetic progestin, and ethinyl estradiol, was approved by the FDA in 2018 and is now available. It is the first product to contain segesterone and the second vaginal ring to become available in the US; NuvaRing, which delivers etonogestrel and ethinyl estradiol, was the first. Unlike NuvaRing, which requires use of a new ring each month, the Annovera ring can be used for an entire year, but it must be removed for one week each month.

The FDA has approved Alyftrek (Vertex), an oral fixed-dose combination of the cystic fibrosis transmembrane conductance regulator (CFTR) modulators vanzacaftor, tezacaftor, and deutivacaftor, for once-daily treatment of cystic fibrosis (CF) in patients ≥6 years old who have at least one F508del mutation or another responsive mutation in the CFTR gene. This is the first approval for vanzacaftor and for deutivacaftor, a deuterated form of ivacaftor. Trikafta, a twice-daily oral fixed-dose combination of elexacaftor, tezacaftor, and ivacaftor, is FDA-approved for the same indication...

View the Comparison Table: Some Oral Antiseizure Medications

Levodopa combined with carbidopa (Sinemet) is the treatment of choice for Parkinson's disease (Medical Letter, 30:113, 1988). After prolonged treatment, however, the symptoms of the disease often become difficult to manage. The benefit from each dose becomes shorter (the 'wearing-off' effect), sudden fluctuations occur between mobility and immobility (the 'on-off' phenomenon), and abnormal involuntary movements (dyskinesias) may become frequent. The dopamine agonist bromocriptine (Parlodel) can ameliorate some of these effects. Two new drugs, pergolide (Permax - Lilly), another dopamine...

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

The drugs of choice for treatment of common cardiac arrhythmias are listed in Tables 1 and 2. Some drugs are recommended for indications that have not been approved by the FDA.

Management of intermittent claudication, the most common symptom of peripheral arterial disease (PAD), involves both risk factor modification and symptomatic treatment (WR Hiatt, N Engl J Med 2001; 344:1608; RM Schainfeld, J Am Board Fam Pract 2001; 14:443).

The American Heart Association has issued its revised guidelines for prevention of infective endocarditis. Antimicrobial prophylaxis for dental procedures is now recommended only for patients at the highest risk of severe consequences from endocarditis who are undergoing the highest-risk procedures. Endocarditis prophylaxis is no longer recommended for gastrointestinal (GI) and genitourinary (GU) procedures. When these changes are implemented, the number of patients receiving antimicrobial prophylaxis to prevent endocarditis should decline sharply.