Jun 24, - Explore why these anti-anxiety medications are Schedule IV drugs. Benzodiazepines such as Ativan, Xanax, and Valium are a class of medications of ; The Controlled Substances Penalties Amendments Act of The Schedules, Controlled Substances and Penalties for Possession listed below describe the schedule system, gives examples of drugs in each schedule, and outlines Valium, Xanax, Rohypnol, Darvon, Clonazepam, Barbital (and others). A Listing of drugs and their schedule are located at Controlled Substance Act (CSA) Schedule IV drugs, substances, or chemicals are defined as drugs with a low Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, Tramadol Controlled Substances Act Fentanyl Overview; Federal Trafficking Penalties.