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Anticonvulsant drugs can elevate the seizure threshold and/or limit the spread of seizure discharge. Generic "Dilantin" exerts its anticonvulsant effect mainly by limiting the spread of seizure activity and reducing seizure propagation, unlike phenobarbital and carbamazepine, which elevate the seizure threshold. Because Generic "Dilantin" does not elevate the seizure threshold, it is less effective against drug-induced or electroconvulsive-induced seizures. Generic "Dilantin" 's anticonvulsant effects are mediated through effects on sodium channels on the neuronal cell membrane. Generic "Dilantin" exerts its anticonvulsant effects with less CNS sedation than does phenobarbital. In toxic concentrations, Generic "Dilantin" is excitatory and can induce seizures. Generic "Dilantin" is also a weak antiarrhythmic. Antiarrhythmic actions are also mediated through effects on sodium channels, in this case, in Purkinje fibers.

Active Ingredients: Phenytoin sodium.
Inactive Ingredients: Sucrose, lactose, starch-wheat, purified talc, magnesium stearate, titanium dioxide, erythrosine, carbon black and gelatin.

Generic "Dilantin" is indicated for the control of generalized tonic-clonic (grand mal) and complex partial (psychomotor, temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery.