Cannabis, also known as marijuana - from-the Mexican Spanish marihuan and by many other names,is a preparation of-the Cannabis plant meant for use being a psychoactive drug and as medicine.Pharmacologically, the main psychoactive ingredient of marijuana is tetrahydrocannabinol (THC ); it is among 483 known ingredients in-the plant, including at the very least 84 other cannabinoids, such as cannabidiol (CBD), cannabinol (CBN), tetrahydrocannabivarin (THCV )and cannabigerol (CBG ).… Continue