Cannabidiol is an extract of the Cannabis plant which was licenced in the US in 2018 for use as a treatment for various types of Epilepsyplugin-autotooltip__plain plugin-autotooltip_bigEpilepsy

"Epilepsy is a chronic noncommunicable disease of the brain that affects around 50 million people worldwide. It is characterized by recurrent seizures, which are brief episodes of involuntary movement that may involve a part of the body (partial) or the entire body (generalized) and are sometimes accompanied by loss of consciousness and control of bowel or bladder function. Seizure episodes are a result of excessive electrical discharges in a group of brain cells. Different parts of …

It's also used to treat Restless leg syndromeplugin-autotooltip__plain plugin-autotooltip_bigRestless leg syndrome

Restless leg syndrome, also known as Willis-Ekbom disease, is a common condition of the nervous system that causes an overwhelming and irresistible urge to move the legs. Estimates are that around 10% of people suffer from RLS at some stage in their lives. It often occurs during sleeping hours and can cause severe insomnia. In the majority of cases there's no obvious cause (i.e. it's termed and some other movement disorders.

Despite intensive research efforts (it was first isolated in 1940) its 'mechanism of action' in successfully treating a range of neurological disorders is currently unknown.

There is still some debate about scientific proof of its efficacy in treatments of anxiety, nausea, glaucoma, chronic pain and as an anti-psychotic. Nevertheless, its use - both formally and informally - is now very widespread, and it's no longer a restricted substance in many countries.

Technical info.: Epilepsia, 55(6): 791–802. .