Photo: Close up of neuroprotection


Phenytoin is already used to treat epilepsy. In a phase 2 clinical trial, phenytoin reduced damage to the back of the eye (retina) by 30% compared with placebo. This suggests it could help to protect nerves from damage.

Current phase of trial: Phase 2

Type of MS: People with optic neuritis (inflammation of the optic nerve)

About phenytoin