SPL Set ID: 6922f32f-8bed-4c09-8103-27987bcbd104

Phenytoin Sodium Injection, USP is a sterile solution of 50 mg phenytoin sodium per milliliter for intravenous or intramuscular administration. The solution is in a vehicle containing 40% propylene glycol and 10% alcohol in water for injection, adjusted to pH 12 with sodium hydroxide. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2, 4- imidazolidinedione represented by the following structural formula: C 15 H 11 N 2 NaO 2 MW 274.25 structural formula