Uses, Dosage & Side Effects: Fosphenytoin Injection

Fosphenytoin Injection

Generic nameFosphenytoin
Drug classHydantoin anticonvulsant
FormsInjectable solution (given into a vein or muscle)

Fosphenytoin is a medicine given by injection that the body converts into phenytoin, a drug used to stop and prevent seizures. It is given by a doctor or nurse, usually when seizure medicine cannot be taken by mouth.

Read the full guideUses, dosage, side effects, precautions, and sources, written from the same verified facts.

General information, not medical advice

Your prescriber and the leaflet in your pack know your situation. This page does not.

  • Follow your prescriber and the leaflet
  • Don't start, stop, or change a dose on your own
  • Doses and warnings differ by country and product
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