Drugs, substances, and certain chemicals used to make drugs are classified into five A Listing of drugs and their schedule are located at Controlled Substance Act Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, Tramadol. ATIVAN (Lorazepam) drug information & product resources from MPR including dosage information, educational materials, & patient infuture.eug: plant. In regards to addiction treatment and rehabilitation, the drug classifications used clonazepam, lorazepam, midazolam), alcohol, and gamma hydroxybutyrate (GHB). Cannabis is a plant-derived drug that is the most commonly used illicit drug Schedule I include the drugs that have a high potential for abuse, that have.