The U.S. Food and Drug Administration (FDA) and Novo Nordisk are warning people not to use counterfeit semaglutide 1.0 mg (Ozempic injection) found in the US drug supply chain.
Novo Nordisk notified the FDA on April 3, 2025 that several hundred units of the fake product had been distributed outside the company’s authorized supply chain. The FDA seized the identified products on April 9, 2025, but some may still be circulating.
Patients, wholesalers, retail pharmacies, and healthcare professionals are advised to check Ozempic boxes for the lot number PAR0362 and serial number beginning with the first eight digits, 51746517. The lot number is legitimate, but the serial number is counterfeit. Any product with serial number 51746517 should not be used, distributed, or sold, the FDA said in a statement.