FDA Announces Removal of 12 Peptides from Category 2 and Schedules PCAC Meetings to Consider Adding Peptides to 503A Bulk Drug Substances List FDA Peptide Update: Category 2 Removals Explained 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. Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law FDA considers adding a dozen peptides to its bulk drug compounding list RAPS