Sep 10, - I take Carbamazepine (Tegretol) for my seizures but I still have Yesterday my doctor prescribed Diazepam (Valium) 5 mg for me to take 3. Parsonage MJ, Norris JW. Use of diazepam in treatment of severe convulsive status epilepticus. Br Med J. Jul 8;3()– [PMC free article] [PubMed]. Status during a tonic clonic (convulsive) seizure is a medical emergency and Emergency Medication – using rectal diazepam to treat prolonged seizures.