April 30 (Reuters) - The U.S. Food and Drug Administration on ‌Thursday proposed excluding active ingredients ‌for Novo Nordisk and Eli Lilly's weight-loss drugs ​on the list of drugs outsourcing facilities can use for compounding.

If finalized, the exclusion would limit compounding ‌of these ⁠medicines unless they appear on the agency's drug shortage ⁠list.

The FDA said it did not identify a clinical need ​for outsourcing ​facilities to ​compound semaglutide, the ‌active ingredient of Novo's Wegovy and Ozempic, and tirzepatide, sold as Zepbound and Mounjaro by Lilly, from bulk drug substances. The proposal ‌also includes Novo's older ​molecule liraglutide.

"When FDA-approved ​drugs are ​available, outsourcing facilities cannot ‌lawfully compound using bulk ​drug ​substances unless there is a clear clinical need," FDA Commissioner Marty ​Makary ‌said.

(Reporting by Mrinalika Roy and ​Mariam Sunny in Bengaluru; Editing ​by Leroy Leo)