There is much research required to establish the beneficial effects cannabis has on the human body and how the cannabinoids work. Only one drug – Epidiolex – has so far been approved by the US Food & Drug Administration. It is for the treatment of a rare form of epilepsy called Dravet syndrome and Lennox-Gastaut syndrome, a genetic brain disorder. UK-based GW Pharmaceuticals (GWPH) is the maker of Epidiolex and is listed on Nasdaq. Cannabis can provide pain relief, control fits, suppress tics, help with sleep, anxiety, stopping smoking and much more. It is also being used to treat arthritis and glucoma, but scientific research in all these fields is lacking. Because of prohibition research has so far been limited, so strong evidence, other than anecdotal, has yet to be established in scientific conditions, except in the case of Dravet Syndrome. Long-running and unproven assertions that cannabis can cure cancer continue to circulate, with cannabis oil therapeutic remedies sold to cancer sufferers by scammers preying on the vulnerable. In its CBD form cannabis is finding itself as the active ingredient in wellness and beauty products, beverage consumption and edibles. In jurisdictions where marijuana is legal it is being ingested by vaping, smoking or eating and is of course the best-known use case for the plant.