The FDA has approved the marketing of RotaShield, a live oral vaccine for prevention of infantile rotavirus infection. Rotaviruses are segmented double-stranded RNA viruses that are the most common cause of severe diarrhea and dehydration in infants and young children.

The oral fixed-dose combination of the neprilysin inhibitor sacubitril and the angiotensin receptor blocker (ARB) valsartan (Entresto – Novartis) was approved in 2015 to reduce the risk of cardiovascular death and hospitalization for heart failure in adults with chronic heart failure (NYHA Class II-IV) and reduced ejection fraction (HFrEF; LVEF...

The FDA has restricted its Emergency Use Authorization for the adenovirus-based COVID-19 vaccine manufactured by Johnson & Johnson (Janssen) to adults who are unable or unwilling to receive another COVID-19 vaccine. The mRNA COVID-19 vaccines manufactured by Pfizer/BioNTech (Comirnaty) and Moderna (Spikevax) are preferred for all persons without a contraindication.

The FDA has approved the over-the-counter (OTC) sale of Narcan (Emergent), a nasal spray that delivers 4 mg of the opioid antagonist naloxone. Narcan nasal spray has been available by prescription since 2015 for emergency treatment of opioid overdose. Generic formulations of Narcan have also been approved; the manufacturers of these products will be required to switch them to OTC status and amend their labeling accordingly. Kloxxado, an 8-mg naloxone nasal spray, remains available only by prescription.

The amyloid beta-directed monoclonal antibody lecanemab-irmb (Leqembi – Eisai/Biogen) has now been approved by the FDA for once-monthly use for treatment of Alzheimer's disease (AD) in patients with mild cognitive impairment (MCI) or mild dementia. It was previously approved only for administration once every 2 weeks. Now, lecanemab can be given every 4 weeks after an 18-month initiation phase of biweekly administration.

The FDA has approved a 12.5-mg tablet formulation of the thiazide-like diuretic chlorthalidone (HemiClor – Ingenus) for treatment of hypertension. Chlorthalidone has been available for years in 15-, 25-, and 50-mg tablets (Thalitone, and generics) and in fixed-dose combinations with azilsartan medoxomil (Edarbyclor) and atenolol (Tenoretic, and generics).

The FDA has approved Clenpiq (Ferring), a low-volume oral solution that contains sodium picosulfate, magnesium oxide, and anhydrous citric acid, for colon cleansing prior to colonoscopy in adults. The ready-to-drink solution contains the same ingredients as Prepopik, which is supplied as a powder for reconstitution.

The oral antimalarial tafenoquine succinate, a long-acting analog of primaquine, has been approved by the FDA in 2 different strengths. Arakoda (100-mg tablets; Sixty Degrees) is indicated for the prophylaxis of malaria in adults. Krintafel (150-mg tablets; GSK) is indicated for the prevention of relapse (radical cure) of Plasmodium vivax malaria in patients ≥16 years old undergoing treatment for acute P. vivax infection.

Lefamulin (Xenleta – Nabriva), a semisynthetic pleuromutilin antibiotic, has been approved by the FDA for IV and oral treatment of community-acquired bacterial pneumonia (CABP) in adults. It is the first systemic pleuromutilin antibiotic to be approved in the US; retapamulin (Altabax), a 1% topical ointment for treatment of impetigo, was approved in 2007.

The FDA has approved an oral tablet formulation of sodium sulfate, magnesium sulfate, and potassium chloride (Sutab – Braintree) for colon cleansing prior to colonoscopy in adults. A sodium sulfate-based oral solution (Suprep) has been available in the US since 2010. Sutab is the second tablet formulation to be approved for bowel cleansing prior to colonoscopy; a sodium phosphate-based tablet (OsmoPrep) was approved earlier.