Tetrahydrocannabinol, or THC, is a chemical found in the HEMP plant, CANNABIS SATIVA, that causes the PSYCHOACTIVE effects in MARIJUANA, BHANG, HASHISH, and GANJA. Hashish is derived from the resin that oozes from the flowering tips of the female...

Δ9-tetrahydrocannabinol (THC) is the principal active ingredient of CANNABIS. It binds to specific THC receptors in brain, for which ANANDAMIDE is the natural LIGAND. See also:...

The most active of the principal constituents of marijuana, contained in various parts of the...

Tetrahydrocannabinol, also known as THC, Δ9-THC, Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ1-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in the Cannabis plant. It was...

Two farmers granted the first licenses in the nation to grow industrial hemp filed a federal lawsuit Monday to get final permission from the Drug Enforcement Administration.The lawsuit asks a federal judge to recognize that hemp is allowed to be grown in North Dakota, said...

Two North Dakota farmers who received the nation's first state licenses to grow industrial hemp have been granted renewals, though forces outside the state will largely decide whether the farmers will ever get a crop in the ground.David Monson and Wayne Hauge had state licenses...

New findings on marijuana's damaging effect on the brain show the drug triggers temporary psychotic symptoms in some people, including hallucinations and paranoid delusions, doctors say.British doctors took brain scans of 15 healthy volunteers given small doses of two of the active ingredients of cannabis,...

Smoking marijuana eased HIV-related pain in some patients in a small study that nevertheless represented one of the few rigorous attempts to find out if the drug has medicinal benefits.The Bush administration's Office of National Drug Control Policy quickly sought to shoot holes in the...