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medical cannabis
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Cannabis sativa Medical cannabis: CanniMed Map of the United States displaying the legal status of marijuana by state as of late 2024. States where marijuana is legal for adult use are shaded green, states where it is illegal are shaded orange, and states with conditionally decriminalized possession are marked with a lighter orange. Additional symbols indicate where marijuana is legal for medicinal use or where only low-THC medicinal use is permitted.
The chemistry of marijuana
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Cannabis sativa
Cannabis sativa Cannabis sativa.

medical cannabis

drug
Also known as: medical marijuana
Written by
Mark A. Ware
Director of Clinical Research of the Alan Edwards Pain Management Unit, McGill University Health Centre Associate Professor, Family Medicine and Anesthesia, McGill University Executive Director, Canadian...
Mark A. Ware
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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ā€¢History

medical cannabis, herbal drug derived from plants of the genus Cannabis that is used as part of the treatment for a specific symptom or disease. Although the term cannabis refers specifically to the plant genus, it is also used interchangeably with marijuana, which describes the crude drug isolated from the plantsā€™ leaves and flowers. While cannabis has a long history of medical use as an analgesic (pain reliever) and antispasmodic agent, for much of the...

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