The Danish drugmaker Novo Nordisk contends that semaglutide, the active ingredient in Ozempic and Wegovy, is too complex for those manufacturers to make safely.

Novo Nordisk wants the Food and Drug Administration (FDA) to prevent compounding pharmacies from manufacturing their own versions of the company’s popular weight loss drug Wegovy and diabetes

Novo Nordisk has asked the FDA to block production of compounded copies of Ozempic, arguing that it’s too difficult to do safely. It’s the latest escalation in a brewing war between pharmaceutical companies and compounders.