A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound.

A synthetic pill form of delta-9-tetrahydrocannabinol (THC), an active ingredient in marijuana that is used to treat nausea and vomiting associated with cancer chemotherapy.

An isomer of tetrahydrocannabinol (THC) that is the main and most active isomer found in the Cannabis sativa L. plant, with potential anti-emetic, analgesic and appetite stimulating activities. Upon administration, dronabinol, also called delta-9-THC, targets and binds to cannabinoid receptors (CBRs) located in the central nervous system (CNS). Dronabinol acts directly on the appetite and vomiting control centers in the brain to stimulate appetite and prevent emesis. In addition, this agent induces analgesia. Urine levels may be used as a marker to determine the exposure to certain preparations containing parts of the cannabis plant, such as marijuana.

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...