Novo Nordisk said Monday it will end its collaboration with Hims & Hers that offered the weight loss medication Wegovy for patients who have a prescription for the medication but no insurance coverage for it.

The Danish pharmaceutical said it was ending the partnership because Hims is selling and promoting a cheaper copycat of its blockbuster drug Wegovy.

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.