FDA takes first step in possible reversal of ban on some peptides The Washington Post 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 Peptide Law: A Healthcare Attorney's Guide to the FD&C Act and Unapproved Drugs Holt Law RFK Jr.'s peptide push could unleash risky drugs STAT First Opinion Multifunctionality and Possible Medical Application of the BPC 157 PeptideLiterature and Patent Review BPC 157: What you need to know before you try it You are hearing more about BPC 157. Patients ask about it daily. Here are the most common questions answered. What is BPC 157? BPC 157