Regulatory Updates on Compounded Peptides New Drug Loft and VLS Pharmacy Major peptide regulatory news this week. The FDA announced on April 15 that it will remove 12 peptides from Category 2 of the 503A bulk drug substances list after seven calendar days. FDA considers adding a dozen peptides to its bulk drug compounding list RAPS Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives