Read Next
tetrahydrocannabinol
drug
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Thank you for your feedback
Our editors will review what you’ve submitted and determine whether to revise the article.
Recent News
May 25, 2024, 12:04 AM ET (CBS)
St. Cloud raid seizes THC products more than 100 times legal limit, police say
May 8, 2024, 11:40 PM ET (Medical Xpress)
Study finds THC lingers in breastmilk with no clear peak point
tetrahydrocannabinol (THC), active constituent of marijuana and hashish that was first isolated from the Indian hemp plant (Cannabis sativa) and synthesized in 1965. For the effects of the drug, see marijuana.