Fosphenytoin Sodium and its Impurities

Fosphenytoin Sodium, also known as fosphenytoin, and sold under the brand name Cerebyx among others. it is an antiepileptic agent used for the management of generalized convulsive status epilepticus and prevention and treatment of seizures occurring during neurosurgery. Reference standards of Fosphenytoin Sodium API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.