FDA releases denial letters for unapproved drugs, a step toward transparency Taking unapproved drugs such as TB 500 and BPC 157 means:, Using DoD prohibited substances, Compromising your readiness to serve, Risking your health and military career, #LetsTalkSupplements FDA to weigh easing limits on unproven peptides promoted by RFK Jr. The FDA has issued clear signals on BPC 157: it is not approved for human use in any form due to potential significant safety risks. This critical classification profoundly impacts research and