FDA to weigh easing limits on unproven peptides The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Is BPC 157 Banned? Oral vs. Injectable Forms Explained FDA to weigh easing limits on unproven peptides favored by RFK Jr. and other MAHA figures The FDA has issued warning letters to multiple companies marketing compounded Retatrutide, an investigational drug from Eli Lilly still in Phase II trials. While early studies have shown promising weight loss results, Retatrutide FDA Sends Warning Letters to Multiple Companies for Illegally Selling Adulterated Dietary Supplements FDA