List of Schedule I controlled substances (U.S.)

This is the list of Schedule I controlled substances as defined by the United States Controlled Substances Act. The following findings are required for substances to be placed in this schedule:

1. The drug or other substance has a high potential for abuse.
2. The drug or other substance has no currently accepted medical use in treatment in the United States.
3. There is a lack of accepted safety for use of the drug or other substance under medical supervision.

Except as specifically authorized, it is illegal for any person:

1. to manufacture, distribute, or dispense, or possess with intent to manufacture, distribute, or dispense, a controlled substance; or
2. to create, distribute, dispense, or possess with intent to distribute or dispense, a counterfeit substance.

Additional substances are added to the list by the Secretary of Health and Human Services pursuant to 21 CFR 1308.49.

The complete list of Schedule I substances is as follows. The Administrative Controlled Substances Code Number for each substance is included.