Controlled "Scheduled" Substances

Below is a brief description of the schedules from the DEA.
A more detailed listing can be found in the front of the Physician's
Desk Reference.

Schedule I

The drug or other substance has a high potential for abuse.
The drug or other substance has no currently accepted medical use
in treatment in the United States.

There is a lack of accepted safety for use of the drug or other
substance under medical supervision.
Some Schedule I substances are heroin, LSD, marijuana, and
methaqualone.

Schedule II

The drug or other substance has a high potential for abuse.

The drug or other substance has a currently accepted medical use in
treatment in the United States or a currently accepted medical use
with severe restrictions.

Abuse of the drug or other substance may lead to severe
psychological or physical dependence.

Schedule II substances include morphine, PCP, cocaine, methadone,
and methamphetamine.

Schedule III

The drug or other substance has a potential for abuse less than the
drugs or other substances in Schedules I and II.

The drug or other substance has a currently accepted medical use in
treatment in the United States.

Abuse of the drug or other substance may lead to moderte or low
physical dependence or high psychological dependence.

Anabolic steroids, codeine and hydrocodone with aspirin or Tylenol,
and some barbiturates are Schedule III substances.

Schedule IV

The drug or other substance has a low potential for abuse relative to
the drugs or other substances in Schedule III.

The drug or other substance has a currently accepted medical use in
treatment in the United States.

Abuse of the drug or other substance may lead to limited physical
dependence or psychological dependence relative to the drugs or
other substances in Schedule III.

Included in Schedule IV are Darvon, Talwin, Equanil, Valium and
Xanax.

Schedule V

The drug or other substance has a low potential for abuse relative to
the drugs or other substances in Schedule IV.

The drug or other substance has a currently accepted medical use in
treatment in the United States.

Abuse of the drug or other substance may lead to limited physical
dependence or psychological dependence relative to the drugs or
other substances in Schedule IV.

Over-the-counter cough medicines with codeine are classified in
Schedule V.