Schedule 4, Appendix D (S4D) refers to Prescription Only Medicines that don't have sufficient addictiveness or risk of abuse to be classified as S8, but for which a significant addiction/abuse risk exists. As such, S4D drugs are subject to additional prescription and recording requirements over S4. These drugs are referred to as "prescribed restricted substances" under the "Poisons and Therapeutic Goods Regulation 2002 (NSW)" and are listed in Appendix D of the Regulation. Drugs included in Appendix D include benzodiazepines, anabolic steroids, gabapentinoids and opiates. A subset of Appendix D are the Appendix B substances, which are subject to similar requirements as S8 drugs.