Medical marijuana is obtained from two subspecies of hemp - cannabis (Cannabis sativa L. subsp. Sativa) and cannabis (Cannabis sativa L. subsp. Indica), which differ from each other in the content of active substances. A number of ingredients are responsible for the action of drugs based on medical cannabis, the most important are cannabinoids - especially THC and CBD. In Poland, medical marijuana is available in pharmacies on prescription - as dried flowers or extract.