Desflurane (Suprane - Anaquest), an inhalation anesthetic, has been approved by the US Food and Drug Administration for induction and maintenance of general anesthesia in adults and for maintenance of anesthesia in infants and children. Like isoflurane (Forane), the last volatile anesthetic to become available in the USA (Medical Letter, 23:112, 1981), the new agent is a halogenated methyl ethyl ether, differing from isoflurane in the substitution of a fluorine for a chlorine atom.

The FDA has approved a new IV formulation of dantrolene (Ryanodex – Eagle) for prevention and treatment of malignant hyperthermia in adults and children. The new formulation requires fewer vials, less fluid volume, and less time for preparation and administration than other available IV dantrolene products (Dantrium, Revonto).

Remdesivir (Veklury – Gilead), an investigational antiviral drug administered by IV infusion, is now available through an FDA Emergency Use Authorization (EUA) for treatment of COVID-19 in all hospitalized patients. An earlier EUA limited use of the drug to patients hospitalized with severe disease.

Insulin glargine-aglr (Rezvoglar – Lilly), which was approved by the FDA as a biosimilar to the reference product Lantus in 2021 and received interchangeability status with Lantus in 2022, will become available in the US on April 1, 2023. It is the second biosimilar insulin product to be designated as interchangeable with Lantus; Semglee was the first. Rezvoglar did not receive interchangeability status with Lantus at the time of its initial approval because the manufacturer of Semglee had exclusivity for 12 months.

Our recent article on Drugs for Hypertension (Med Lett Drugs Ther 2024; 66:81) described both the Paradise and Symplicity Spyral renal denervation devices as ultrasound devices. That is true for the Paradise device, but Symplicity Spyral uses radiofrequency ablation.

The Norplant System (Wyeth-Ayerst) for subdermal delivery of the synthetic progestin levonorgestrel was recently approved by the US Food and Drug Administration for use as a long-term contraceptive.

An intranasal formulation of the corticosteroid triamcinolone (Nasacort - Rh ne- Poulenc Rorer) was recently approved by the US Food and Drug Administration for once-daily treatment of seasonal and perennial allergic rhinitis.

Aprotinin (Trasylol - Miles), an inhibitor of fibrinolysis first identified in 1930, was recently approved by the US Food and Drug Administration for intravenous use in high-risk coronary artery bypass graft (CABG) surgery to decrease bleeding and the need for transfusion. Inhibitors of fibrinolysis previously available in the USA include aminocaproic acid (Amicar, and others) and tranexamic acid (Cyklokapron - Medical Letter, 29:89, 1987).

Anastrozole (Arimidex - Zeneca), a selective nonsteroidal aromatase inhibitor, has been approved by the US Food and Drug Administration (FDA) for treatment of postmenopausal women with advanced breast cancer that has progressed during treatment with tamoxifen (Nolvadex, and others).

Samarium-153 lexidronam (Quadramet - Dupont Pharma) has been approved by the FDA for relief of pain in patients with osteoblastic bone metastases. Strontium-89 (Metastron) has been available for several years for this indication (Medical Letter, 35:102, 1993).