Yes,when I was on 3000 mg. a day,I had to take almost a
2 hour nap everyday.I tried the B6 and it didn't do anything
for me.The Keppra did not control my seizures either,so I
am only taking 250 mg. a day.Not as tired now,but,it works
like a sleeping pill,I am asleep half an hour after taking the med.
My husband takes B-1 which is supposed to be an anti-seizure vitamin to go with his Dilantin and Keppra. He was told to take it when he first had seizures. Interesting that B-6 wasn't mentioned at the time.