New changes are coming to the injectable peptide market. That includes the FDA's proposed deregulation, announced by U.S. health secretary Robert F. Kennedy, Jr., which is likely to impact the supplement and Peptide Clinics taken to court by TGA over false advertising claims about bodybuilder drug ABC News 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. The growing market for injectable peptides includes many schedule 4 drugs that are not yet approved for use in Australia but can be prescribed by a doctor Queensland Health Departmental Standard