Epilepsy

The House of Lords Science and Technology Committee expressed interest in the use of the compound cannabidiol to treat epilepsy, but did not recommend it because of the small numbers of participants in controlled studies. The British Medical Association stated that cannabidiol "could possibly provide an adjunctive therapy for patients poorly controlled on presently available drugs." The BMA did not feel that THC showed potential as a treatment for epilepsy.

The information remains limited, and often conflicting, on the potential of cannabinoids to treat epilepsy. Some studies and anecdotal reports suggest that high doses of THC can actually trigger seizures. For this reason, some doctors do not consider THC as a suitable treatment for epilepsy, although high doses of other anti-convulsant medications (such as phenytoin) are also known to trigger seizures if levels are too high.