Some of them are as potent (if not more) than THC, the main psychoactive ingredient found in marijuana.

Cannabis Tetrahydrocannabinol, the main psychoactive ingredient in this plant can have sedative and euphoric properties.

It has also been suggested that stimulation of the temporal lobe by psychoactive ingredients of Magic Mushrooms mimics religious experiences.

The psychoactive ingredient, according to the classic text, can be removed by boiling Panaeolus cinctulus in hot water, then keep or throw away the water.

Delta-9-THC is the principal psychoactive ingredient of the marijuana plant.

Self-administration behavior is maintained by the psychoactive ingredient of marijuana in squirrel monkeys (journal article)

The therapeutic applications of smoked marijuana have been traced down to the psychoactive ingredient it contains, THC.

The study's subjects were exposed to either a placebo, inhaled marijuana, or dronabinol, a pill that contains cannabis' psychoactive ingredient.

Cannabis: Tetrahydrocannabinol, the main psychoactive ingredient in the Cannabis plant can have stimulant, depressant, and hallucinogenic properties.

Examples of street drugs are heroin, marijuana and its psychoactive ingredient of tetrahydrocannabinol (THC), and cocaine.