Novo Nordisk, the maker of popular weight-loss drugs Ozempic and Wegovy, has filed a lawsuit against Hims & Hers, accusing the company of selling "unsafe, knock-off" versions of its medications and infringing on its patent.

• Novo Nordisk is seeking to ban Hims & Hers' range of weight-loss pills and injections, which it claims are not approved by US authorities.
• The lawsuit was initiated on Monday after Hims & Hers launched a new weight-loss pill; Hims & Hers' shares slumped by 16% on Monday.
• Novo Nordisk argues its action aims to "protect public health," while Hims & Hers accuses Novo Nordisk of "weaponizing the US judicial system to limit consumer choice."
• The dispute highlights the practice of "compounding," where Hims & Hers' drugs are allowed to be sold without full approval, a process Novo Nordisk is now "fighting back" against.