The FDA has approved fidaxomicin (Dificid – Optimer), a new oral macrolide antibiotic, for treatment of Clostridium difficile-associated diarrhea in patients ≥18 years old. The incidence and severity of C. difficile infection (CDI) have increased in recent years with the emergence of an epidemic hypervirulent strain (NAP1/B1/027), possibly related to widespread use of fluoroquinolones.

Apremilast (Otezla – Celgene), an oral phosphodiesterase type-4 (PDE4) inhibitor, has been approved by the FDA for treatment of active psoriatic arthritis in adults. It is the fi rst PDE4 inhibitor to be approved for this indication.

Most patients with end-stage renal disease develop hyperphosphatemia, which can lead to secondary hyperparathyroidism, vascular calcification, and cardiovascular mortality. The FDA has approved sucroferric oxyhydroxide (Velphoro – Fresenius Medical Care), a chewable phosphate binder, for treatment of hyperphosphatemia in patients with chronic kidney disease (CKD) on dialysis. It is the first iron-based phosphate binder to be approved for this indication.

Plenity (Gelesis), a nonsystemic oral superabsorbent hydrogel formulation of cellulose and citric acid is now available. It was cleared by the FDA in 2019 to aid in weight management together with diet and exercise in overweight and obese adults (BMI of 25-40 kg/m2). It is classified by the FDA as a device because the contents of the capsule are not absorbed systemically. Plenity is the first ingested, transient, space-occupying hydrogel to be marketed in the US and the only weight management treatment available by prescription for patients with a BMI of 25-30 kg/m2, regardless of...

Two new injectable GLP-1 (glucagon-like peptide-1) receptor agonists, dulaglutide (Trulicity [trū li si tee] – Lilly) and albiglutide (Tanzeum [tan' zee um] – GSK), have been approved by the FDA for once-weekly treatment of type 2 diabetes. Other available GLP-1 receptor agonists include exenatide, which is approved for injection twice daily (Byetta) or once weekly (Bydureon), and liraglutide (Victoza), which is injected once daily.

Cefprozil (Cefzil - Bristol-Myers Squibb), a new oral second-generation cephalosporin, was recently released in the USA for treatment of pharyngitis, bronchitis, otitis media, and skin and skin-structure infections.

Advertisements for clemastine (Tavist-1 - Sandoz), an ethanolamine oral antihistamine, have recently appeared on television and in major newspapers in the USA. Clemastine is an old drug (Medical Letter, 21:24, 1979) that has now become available without a prescription.

Many drugs, mostly imidazole derivatives, are marketed in the USA for topical treatment of vulvovaginal candidiasis (Medical Letter, 33:81, 1991). Recently, fluconazole (Diflucan - Roerig), which is the drug of choice for treatment of oropharyngeal and esophageal candidiasis (Medical Letter, 36:16, 1994), was approved by the US Food and Drug Administration for single-dose oral treatment of .

Trovafloxacin (Trovan - Pfizer) and its prodrug alatrofoxacin (Trovan IV) are new fluroroquinolones marketed for an unusually wide variety of infections, including oral and intravenous treatment of nosocomial and community-acquired pneumonia, acute ecerbations of chronic bronchitis, acute sinusitis, complicate intra-abdominal and pelvic infections, diabetic foot infection, uncomplicated urinary tract infection, prostatitis, cervicitis and uncomplicated gonorrhea.

Celecoxib, a selective COX-2 inhibitor, has been approved by the FDA for treatment of osteoarthritis and rheumatoid arthritis.