FDA takes first step in possible reversal of ban on some peptides The Washington Post Some peptides are FDA approved drugs. Some are legal supplements. Some are neither. The same word, peptide, covers all three categories. The regulatory status of the specific compound is what determines legality. RFK Jr pushes for FDA approval of BPC 157 peptide Eric Topol, MD posted on the topic LinkedIn RFK Jr. promotes peptides. Now the FDA weighs easing limits on the unproven chemicals