His insomnia was awful when he first started Keppra, then he turned into a little demon spawn. He got super agitated, aggressive, and moody. It was awful. He'd always been so sweet and happy. She called the B6 in and he was back to himself in about 2 days. He's on a 300 mg dose 2x daily, and 20 mg dose of B6 2x daily. His neurologist told me that in some people the Keppra will deplete their B6. Worked like a charm! I remember reading about womens cycle effecting the frequency of seizures and wondered if the information was accurate. I'm so sorry, I think it makes it worse because most people aren't open about it. I'm really grateful that my MIL keeps him, because people panic when they hear Epilepsy.