My son was born with hydrocephalus , and takes grand mal seizures. He has always taken Epival 250 mg,and Tegretol 200 mg for seizure control. He takes 2 tegretol and 2 epival in am, and 2 tegretol and 3 epival in pm. Recently, the pharmacy switched his epival to novo-divalproex, and ap0-divalproex which are generic. He started taking seizures again, a different kind, but still very scary. I asked the Dr. at hospital where I took him by ambulance about generic drugs, and he said they were OK. They are not. The pharmacist told me my son was allergic to the filler in the generic drugs. He is OK with the regular Epival and Tegretol. I wondered if you had any input into this issue. I am very afraid for my son, because grand mal seizures are a medical emergency, and I have never had to fight with a doctor about a generic drug, but I know my son is not OK with them. He is on a low stress program at home, we keep it pretty low. He has always had good results with the regular Epival. Can you give me any information on this. I know something is just not right here. Any help would be appreciated. Lois (Mom) and caregiver.