Dilantin functions by prolonging the inactivation of sodium channels in neuronal membranes, hence stabilizing the threshold against excitability triggered by excessive stimulation. By modifying the conductance among sodium channels, phenytoin prevents the spread of disruptive electrical charges in the brain which causes seizures. It’s essential for managing a stable level of Dilantin as its therapeutic window is narrow, and both underdose and overdose can cause issues.
This medication is crucial for individuals who suffer from epileptic conditions, offering a chance at normalcy by controlling seizures. It’s also sometimes used for treating trigeminal neuralgia and preventing seizures during or after neurosurgery.