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FDA warns of counterfeit Ozempic 1 mg pens found in the US drug supply chain

Safety

The FDA warned patients, pharmacies and wholesalers not to use counterfeit Ozempic (semaglutide) 1 mg injection after Novo Nordisk reported several hundred fake units in the US supply chain, and the agency seized the identified products. The counterfeits carry the genuine lot number PAR0362 with serial numbers beginning 51746517, so both must be checked. It followed a December 2023 alert about thousands of fake Ozempic pens with counterfeit needles, and a further alert followed in December 2025.

Sources

  1. 01FDA warns consumers not to use counterfeit Ozempic (semaglutide) found in U.S. drug supply chain(opens the source in a new tab) U.S. Food and Drug Administration
  2. 02Novo Nordisk warns consumers about counterfeit Ozempic (semaglutide) injection 1 mg in the US(opens the source in a new tab) Novo Nordisk via PR Newswire

Peptides involved

  1. ApprovedSemaglutideGLP-1 receptor agonist31