marijuana patch
n. A medical patch worn on the skin and designed to release chemicals from marijuana that alleviate side effects caused by chemotherapy. Also: pot patch, doobie derm.

Example Citations:
Her two-year effort to research and develop a medical marijuana patch that would release the drug’s active ingredients through the skin has inspired more one-liners than she can recall. The patch is intended to be used by cancer patients for relief from nausea, vomiting and other side effects of chemotherapy.
—Winnie Hu, “Marijuana Patch Draws Interest of Researchers,” The New York Times, January 30, 2000

But Kramer says he has concerns about the safety of a transdermal medical marijuana patch developed without veterinary involvement because there is no way of telling how effective it is, and accidental ingestion of the patch could be dangerous to pets.
—Rchael Zimlich, “California DVM wants clinical trial on medical use of marijuana in pets,” DVM360, January 1, 2012

Earliest Citation:
A “marijuana patch” similar to the patches that help smokers kick the habit could help relieve the pain and side effects of cancer, researchers say.
—Michael Gormley, “Researchers will test ‘marijuana patch’ for cancer patients,” The Associated Press, January 19, 2000

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