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About this Medication
  • Brand Name: Dilantin (U.S. and Canada)
  • Chemical Name: phenytoin (fen-i-toyn)-i-toyn)
  • Usage in MS: Pain (Dyesthesias)
  • Generic Available: Yes


Phenytoin is one of a group of hydantoin anticonvulsants that are used most commonly in the management of seizures in epilepsy. It is used in MS to manage painful sensations (dysesthesias) -- most commonly trigeminal neuralgia -- caused by demyelination in the sensory pathways in the brain and spinal cord.

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