A U.S. federal judge has refused to allow compounding pharmacies to keep making copies of Eli Lilly's popular weight-loss and diabetes drugs Zepbound and Mounjaro in the United States.

Eli Lilly said it has launched new doses of its obesity treatment drug and reduced its prices.

Eli Lilly said on Tuesday it cut the price for vials of its weight-loss drug Zepbound by $50 or more and expanded the range of doses sold online to try to stave off competition from compounding pharmacies and rival Novo Nordisk .

Compounders had been allowed to produce and sell hundreds of thousands of their own versions of popular anti-obesity drugs.

Some commercially insured patients stand to save $150 per month on Wegovy, a popular obesity medication. Patients on Medicare and Medicaid are not eligible.

The weight-loss drug market is evolving at a rapid speed, with leading pharma companies including Novo Nordisk and Eli Lilly diving into the opportunity to make anti-obesity products. This article looks into key players in the arena.

Consumers who use telehealth or medical spas to get less expensive, compounded weight loss drugs will need to get their medications elsewhere.