Patients may ask about taking elderberry for prevention and treatment of influenza. Products containing elderberry are promoted for relief of cold and flu symptoms and as an immune system booster.

The oral sphingosine 1-phosphate (S1P) receptor modulator ozanimod (Zeposia – Bristol Myers Squibb) has been approved by the FDA for treatment of adults with moderately to severely active ulcerative colitis. It is the first S1P receptor modulator to be approved for treatment of ulcerative colitis. Ozanimod was approved in March 2020 for use in adults with relapsing forms of multiple sclerosis.

View the Table: Treatments Considered for COVID-19

Itraconazole (Sporanox - Janssen), an antifungal triazole, has been approved by the US Food and Drug Administration (FDA) for oral treatment of histoplasmosis and blastomycosis. These two endemic mycoses occur both in normal hosts and in immunocompromised patients, such as those with AIDS (RW Bradsher, Clin Infect Dis, 14:S82, 1992; LJ Wheat, Clin Infect Dis, 14:S91, 1992).

The FDA has approved the interleukin (IL)-23 antagonist mirikizumab-mrkz (Omvoh – Lilly) for treatment of moderately to severely active ulcerative colitis (UC) in adults. Mirikizumab is the first selective IL-23 antagonist to be approved for this indication. Ustekinumab (Stelara), an IL-12/23 antagonist, was approved for treatment of UC in 2019. The IL-23 antagonist risankizumab (Skyrizi) is approved for treatment of Crohn's disease.

The injectable interleukin (IL)-23 antagonist risankizumab-rzza (Skyrizi – Abbvie), previously approved by the FDA for treatment of Crohn's disease (CD), has now been approved for treatment of moderately to severely active ulcerative colitis (UC) in adults. Risankizumab is the first IL-23 antagonist to be approved for treatment of both CD and UC. It is also approved for treatment of plaque psoriasis and psoriatic arthritis.

The FDA has approved the complement factor B inhibitor iptacopan (Fabhalta – Novartis) for treatment of paroxysmal nocturnal hemoglobinuria (PNH) in adults. Iptacopan is the first oral drug to be approved in the US for this indication. Three parenterally administered drugs, the complement C5 inhibitors eculizumab (Soliris) and ravulizumab (Ultomiris) and the complement C3 inhibitor pegcetacoplan (Empaveli), are also approved for treatment of PNH.

The FDA has approved the fully-human programmed death ligand 1 (PD-L1) blocking antibody avelumab (Bavencio – EMD Serono/Pfizer) for treatment of metastatic Merkel cell carcinoma (MCC) in patients ≥12 years old. Avelumab is the first drug to be approved in the US for this rare skin cancer. About 1600 people in the US, most commonly older adults (mean age at presentation is 75 years), are diagnosed each year with MCC. Most of these patients can be treated with surgical resection, but ~50% will have a recurrence and >30% will eventually have metastatic disease. Median progression-free...

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.

Nadofaragene firadenovec-vncg (Adstiladrin – Ferring), an adenoviral vector-based gene therapy, has been approved by the FDA for treatment of adults with high-risk Bacillus Calmette-Guérin (BCG)-unresponsive non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ with or without papillary tumors. It is the first adenoviral vector-based gene therapy to be approved in the US for this indication. The immune checkpoint inhibitor pembrolizumab (Keytruda) was approved for the same indication in 2021.