Cannabis, also known as marijuana, among many other names, is an herb (Cannabis sativa) native to Asia; for more than 5000 years, it used by different cultures of the world for religious, nutritional, and medicinal purposes. In the 16th century, it was a regular part of any medical kit, mainly due to its analgesic and anti-inflammatory effects.
Marijuana or cannabis oil is the most widely used product for medicinal purposes, which is why, in recent years, it has become trendy in certain countries due to the movement to legalize marijuana. This oil is the resinous and sticky product obtained by eliminating the solvent from the extracts containing the cannabinoids of the flowers (buds) of the plant and prepared with different solvents (butane, isopropyl alcohol, ethanol, or hexane). Its THC and CBD content may vary depending on the variety of the vegetable and the production conditions. Ethanol extraction is probably the oldest or most traditional technique. Until the 1950s, it was available in pharmacies under the name of cannabis tincture.