DEA Schedule

Schedule I: High abuse potential and no accepted medical use (heroin, marijuana, LSD)

Schedule II: High abuse potential with severe dependence liability (narcotics, amphetamines, and barbiturates)

Schedule III: Less abuse potential than schedule II drugs and moderate dependence liability (nonbarbiturate sedatives, nonamphetamine stimulants, limited amounts of certain narcotics)

Schedule IV: Less abuse potential than schedule III and limited dependence liability (some sedatives, anti-anxiety agents, and non-narcotic analgesics)

Schedule V: Limited abuse potential. Primarily small amounts of narcotics (codeine) used as antitussives or antidiarrheals