Hello. Last year my husband(36 year old) had a head injury and after that the doctors giving him tegretol. He taking Tegretol 400mg daily 1/2+0+1 (600mg at day),and now in blood is low carbamazepine levels(at morning in 8am was 7.2 , and after that he take the medicine(200mg) and at 1pm was 6.9 (normal is 8-12)),(this is the first time that they checking that).He dont have epileptic attack, but the doctor now recommended 1+0+1 (800mg) daily. Im not sure that is a good thing to giving them more than now,because he is ok. Can you tell me what we should do ? Why would take more medicine if its not necessary ? Is Tegretol cure epilepsy or just prevents attack? Thank you