Medical Cannabis (Medical Marijuana, Medical Cannabis, Medical Marijuana), sometimes referred to as medical marijuana, is a herbal medicine therapy that utilizes tetrahydrocannabinol (THC) and other cannabinoids found in cannabis, as well as synthetic cannabinoids with similar effects. It is the medical use of cannabis, not the type of cannabis. The indications for cannabis to replace the endocannabinoids (endogenous cannabinoids) produced by the body, which act as analgesics, sedatives, hypnotics, appetite stimulants, anticancer, intraocular pressure relievers, and vomiting suppressants, are wide-ranging because the endocannabinoids (endogenous cannabinoids) produced by the body have systemic effects.

It has been used since ancient times in China and India, but became heavily regulated in the 20th century. The World Health Organization found fault with the evidence for medical use and the presumption of danger, and in 2020, cannabis will be removed from the treaty classification of most dangerous (downgrading of international regulation of cannabis), opening the way for medical use and potentially promoting scientific research, the UN explained.

Cited from Wikipedia