Novo Nordisk ended a short-lived agreement to sell its Wegovy weight-loss drug through Hims & Hers Health on Monday, sending shares of the U.S. telehealth company plunging more than 30%. The companies,

Novo Nordisk alleged that Hims & Hers is putting patient safety at risk by selling compounded versions of Wegovy. Novo's ending of its deal with Hims & Hers jeopardizes the healthcare platform's goal to lead the weight loss market.

Novo Nordisk had been providing Hims & Hers with the FDA-approved Wegovy, an injectable semaglutide used for weight loss since late April in order to transition patients off compounded drugs, or off-label versions of the medication, according to the news release.