I don't get it...my doctor says that eventually every seizure medication will quit working over time. Is this true? And also that taking valium for seizure breakthrough would also quit working. I don't know how this is possible. I know people who have taken the same medication for 10, 20 + years and they are fine. I am just striving for 2 weeks without a seizure...but I am worried that something will work and that it will wear off. I wonder sometimes if my doctor just wants to force me into having surgery by saying it is the only option when she knows I don't want to do it (I don't know yet if I am a candidate).