Wave of FDA Warning Letters to Injectable Compounders in Q1 2014 Follows 2013 Inspection Blitz and Legislative Empowerment; Reci The FDA just put peptides like BPC 157, TB 500, and KPV on the clock. , As a compounding pharmacist, this is literally my world and most people dont understand the regulatory nuance behind what FDA Puts BPC 157, TB 500, and 5 Other Peptides Under the Microscope: What Prescribers Need to Know About the 503A Review Lengea FDA to weigh easing limits on peptides promoted by RFK Jr. NBC 6 South Florida