Is BPC 157 Banned? Oral vs. Injectable Forms Explained FDA Is Expected to Lift Restriction on Peptides, Heeding RFK Jr.'s Wishes The New York Times Sources: U.S. Food and Drug Administration (FDA) Compounding and the FDA (503A & 503B guidance) FDA warning letters on unapproved peptide products National Institutes of Health (NIH) PubMed Indictment of Osteopathic Physician Signals Shift in Peptide Enforcement Stevens & Lee FDA's Overreach on Compounded Peptides