Aug 28, - The U.S. Drug Enforcement Administration has published a Final Rule of Schedule IV drugs are: Xanax, Soma, Darvon, Darvocet, Valium. Jun 29, - The federal Drug Enforcement Administration (DEA) handles enforcement of They include Xanax, Soma, Darvon, Valium, Ativan and Ambien. A Listing of drugs and their schedule are located at Controlled Substance Act Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, Tramadol.