Hi
Hi there, I have done a little research on this and from what ive been reading, studies have been done on the effects of B3 supplementation in epilepsy. In one study patients who were poorly controlled with high doses of anticonvulsants were given 1gram three times a day of B3 and after several months their anticonvulsant drug doses could be lowered, all with careful monitoring by the doctor of course. B3 seemed to increase the effectiveness of the medications without increasing side effects.
High doses of B3 can have side effects due to its vasodilation effects; such as flushing, pounding in the head, sensation of heat, headache, hypotension. Taking aspirin at the same time can diminish some of these side effects, but can also cause the B3 to stay in your body longer (therefore smaller dose B3 required). Other side effects which can occur to some people are, anxiety, itching skin, dry skin, brown pigmentation, cholestatic jaundice, nausea, vomiting, diarrhea, heartburn, hyperglycemia in diabetic patients.
Also B3 can interact with some medications, eg, Glipizide for Type 2 diabetics, statins for cholesterol, Clonidine, and insulin dosing may need adjusting for type 1 diabetics. I couldnt find any interactions with antiseizure medications.
All that being said, seems to be something some may want to try under the guidance of their doctor, and it may be beneficial.