Marijuana refers to the hemp plant (Cannabis satvia). It has psychoactive properties through chemicals that it contains, primarily THC (chemicaldelta-9-tetrahydrocannabinol). It is the most frequently abused illicit drug in the United States. For more information, visit the Marijuana Page.
Last Edited: February 25, 2020
All of the information on this page has been reviewed and certified by an addiction professional.