THC, short for tetrahydrocannabinol, is a chemical compound found in the cannabis plant, also known as marijuana. In low doses, the compound causes some pain reduction, may reduce aggression, can stimulate appetite, and may help reduce nausea. Higher doses may cause the “high” associated with marijuana, leading to altered perception of time and space, and feelings of happiness or fatigue.
Cannabidiol — CBD— is a cannabis compound that has significant medical benefits, but does not make people feel “stoned” and can actually counteract the psychoactivity of THC. The fact that CBD-rich cannabis doesn’t get one high makes it an appealing treatment option for patients seeking anti-inflammatory, anti-pain, anti-anxiety, anti-psychotic, and/oranti-spasm effects without troubling lethargy or dysphoria.
Cannabinol, or CBN, is produced as THC oxidizes or degrades. Only a trace of CBN exists in fresh bud. Stored and cured tops or hashish have higher levels of CBN, that has converted from THC. Marijuana with high levels of CBN generally make the toker feel disoriented and often sleepy or groggy, often referred to as a stupefying high. At best CBN contains only 10 percent of the psychoactive potency of the original THC.