Drug compounders on Monday sued the U.S. Food and Drug Administration over its decision last week to remove Novo Nordisk's weight loss and diabetes drugs Wegovy and Ozempic from its shortage list, a move that will sharply curtail the compounders' ability to sell cheaper versions of the drugs.

Blockbuster weight-loss and diabetes drugs Wegovy and Ozempic are no longer in shortage, the US Food and Drug Administration said on Friday.

The FDA has now resolved the shortages of Novo Nordisk’s and Eli Lilly’s blockbuster weight-loss drugs, which could spell the end to the booming market for cheaper versions made by pharmacies.