In 2023, the FDA deemed 19 peptide drugs too unsafe to be dispensed by compounding pharmacies, which mix components of approved drugs to create bespoke medication for people who have trouble taking The Human Lab Rats Injecting Themselves with Peptides Office for Science and Society McGill University Peptides Lack Reliable Safety Information, Watchdog Warns The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law