Washington classifies drugs along the same lines as the federal Controlled Substances Act. A controlled substance “means a drug, substance, or immediate precursor included in Schedules I through V as set forth in federal or state laws, or federal or commission rules, but does not include hemp or industrial hemp as defined.” They are categorized as Schedule I, II, III, IV, and V, and move in descending order. Schedule I drug charges are often the most serious because those drugs are considered the most dangerous. Schedule I drugs Heroin LSD Ecstasy Peyote Marijuana (federal only) Schedule II drugs Methadone OxyContin Percocet Opium Morphine Methamphetamines Schedule III drugs Suboxone Ketamine Anabolic steroids Tylenol with Codeine Schedule IV drugs Klonopin Xanax Valium Ativan Schedule V drugs Robitussin AC Phenergan with Codeine Ezogabine