Oct 31, - WebMD explains opioids, powerful painkillers, and how to use them safely. Aug 11, - And opioid painkillers, as one example, are schedule 2 but legal for medical Schedule 3: Tylenol with codeine, ketamine, anabolic steroids, and testosterone; Schedule 4: Xanax, Soma, Darvocet, Valium, and Ambien. Schedule II drugs include certain narcotic, stimulant, and depressant drugs. Schedule III, IV, or V drugs include those containing smaller amounts of certain narcotic Pharmacies electronically transmit prescription information to the DPS.