In addition, some cannabinoids interact synergistically, producing unique effects that are not found when using them individually. For example, CBD inhibits THC’s psychotropic effects when the two are taken together. However, CBD does this (and produces many other effects) without directly interacting with the cannabinoid receptors. At first, scientists thought there was a third type of CB receptor just for Cannabidiol, but the answer was far more interesting and revealing.
Until relatively recently (1980s), scientists believed that CBD was a natural precursor to the formation of THC, and since THC was a strictly controlled substance back then (it still is), it only followed that CBD should be equally strictly regulated. However, CBD is actually unrelated to the chemical chain that results in THC. They share some characteristics but are created via different paths. Again, unlike THC, CBD is considered a legal cannabinoid and is safe to consume in any amount and concentration.
Cannabidiol is insoluble in water but soluble in organic solvents such as pentane. At room temperature, it is a colorless crystalline solid.[34] In strongly basic media and the presence of air, it is oxidized to a quinone.[35] Under acidic conditions it cyclizes to THC,[36] which also occurs during pyrolysis (smoking).[37] The synthesis of cannabidiol has been accomplished by several research groups.[38][39][40]

^ Klein C, Karanges E, Spiro A, Wong A, Spencer J, Huynh T, Gunasekaran N, Karl T, Long LE, Huang XF, Liu K, Arnold JC, McGregor IS (November 2011). "Cannabidiol potentiates Δ⁹-tetrahydrocannabinol (THC) behavioural effects and alters THC pharmacokinetics during acute and chronic treatment in adolescent rats". Psychopharmacology. 218 (2): 443–457. doi:10.1007/s00213-011-2342-0. PMID 21667074.
Everything you need to know about marijuana (cannabis) Marijuana, or cannabis, is the most commonly used illicit drug in the world. It alters the mood and affects nearly every organ in the body. With at least 120 active compounds, marijuana may have health benefits as well as risks. We describe these, addiction, and withdrawal. Learn more about cannabis here. Read now