Cannabidiol, known as CBD, also appears in virtually all varieties of cannabis. The amount of CBD varies enormously, from a trace to more than 95 percent of all cannabinoids present in a plant. CBD generally has a sedative effect regarding the high you experience. CBD, when combined with THC, tends to postpone the beginning of the high, but, the goodpart is that CBD can make it last twice as long. Whether CBD increases or decreases the force of the high is subjective and must be discerned by each smoker.

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.