Q. My friend has a history of epilepsy and she was on valproic acid while receiving treatment with Biopen, still she had an episode of seizure. Why?
Any previous history with any other medication should be informed to the doctor before starting your treatment with Biopen. Medicines like Biopen can interfere with valproic acid which is used for the treatment of epilepsy, making it less effective. So, the reason for the recent episode of seizure could be the result of such drug interaction. Generally, in cases like these, the doctor prescribes a different medicine.