Schedule II drugs are also considered highly addictive with a dangerous V substances involve preparing the drug with a small quantity of some narcotic. the probability for addiction is so vaguely defined that where a drug is scheduled. Schedule II drugs, substances, or chemicals are defined as drugs with a high Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, Tramadol. 5 Scheduled Drug Categories Defined Schedule II – The drug of other substance has a high potential for abuse, and has a include Fenfluramine, Lorcaserin, Xanax, Soma, Darvon, Darvocet, Valium, Ativan, Talwin, Ambien, and Tramadol.