FDA Removes 12 Peptides from 503A Category 2 Newtropin Updated 2026 FDA Category 2 peptide list As the science and regulations continue to develop, it's important to work with providers who stay informed and prioritize safe, medically guided protocols. At 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 The FDA's Ban of Therapeutic Peptides: A Threat to Health Freedom Slim 'n Sleek