Research and Sponsored Programs

Schedules of Controlled Substances

CONTROLLED
SUBSTANCE
SCHEDULES
DEFINITION   EXAMPLES
I Substances in this Schedule have no currently accepted medical use in the U.S., a lack of accepted safety for use, and a severe potential for abuse   Heroin,
LSD,
marijuana,
peyote,
ecstasy
II Substances in this Schedule have currently accepted medical use in the U.S.; however, they have severe restrictions due to high potential for abuse which may lead to dependence.   Morphine,
PCP,
cocaine,
methadone,
pentobarbital,
fentanyl,
methamphetamine
III Substances in this Schedule have currently accepted medical use in the U.S. and less potential for abuse relative to those in I/II.    Ketamine,
buprenorphine,
anabolic steroids,
codeine,
some barbiturates
IV Substances in tis Schedule have currently accepted medical use in the U.S. and less potential for abuse relative to those in III.    Xanax,
Klonopin,
Valium,
Ativan
V Substances in this Schedule have currently accepted medical use in the U.S. and low potential for abuse.   Cough medicine with <200 mg codeine,
Lyrica 
Last Updated: 6/27/22