Description
[ CAS NO. ] 630-93-3
[ Molecular Formula ] C15H11N2NaO2
[ Molecular Weight ] 274.25
[ Appearance ] White crystalline powder
About Phenytoin Sodium
Phenytoin sodium’s cardiovascular effects were uncoveredduring observation of toxic manifestations of the drugin patients being treated for seizure disorders. Phenytoinsodium was found to cause bradycardia, prolong the PRinterval, and produce T-wave abnormalities on electrocardiograms.It is a class IB antiarrhythmic agent. Today,phenytoin sodium’s greatest clinical use as an antiarrhythmicdrug is in the treatment of digitalis-induced arrhythmias.34 Its action is similar to that of lidocaine. It depressesventricular automaticity produced by digitalis, without adverseintraventricular conduction. Because it also reversesthe prolongation of AV conduction by digitalis, phenytoinsodium is useful in supraventricular tachycardias caused bydigitalis intoxication.
