BPC 157 Erectile Dysfunction Study: What the Evidence Actually Shows FDA Puts BPC 157, TB 500, and 5 Other Peptides Under the Microscope: What Prescribers Need to Know About the 503A Review Lengea Everyone online is suddenly injecting peptides. But almost nobody understands the scienceor the regulation. The FDA recently shifted several peptides off the Category 2 safety risk list tied to compounding rules. First, that FDA to Convene Expert Panel on Expanding Access to Peptides Amid Safety, Regulatory Debate AJMC