Can viagra (sildenafil) have problem with people having epilepsy?

Unlikely: The most common neurologic side effects of viagra (sildenafil) are headache and dizziness. Initial studies in non-epileptic men did not report seizures. Subsequent case reports describe seizure as a rare, possibly unrelated, side effect. Many common seizure meds are processed in the liver, just like viagra (sildenafil), and this could push drug levels up or down; consult with md or pharmacy for possible interactions.

Epilepsy : There is no significant correlation between Viagra and epilepsy.