Tegrital CR 400 Divitabs is an anti-epileptic drug that helps people with epilepsy. It aids in the prevention of some types of seizures (fits). it is also used to treat trigeminal neuralgia, a painful disorder of the face, head, and neck, as well as diabetes-related nerve discomfort (diabetic neuropathy). Tegrital CR 400 Divitabs can be taken with food, however it should be taken at the same time each day. Your doctor will decide on the dose and how often you should take it so that you get the proper amount to control your symptoms. It could be progressively raised. Many other medicine may interact with this one, so tell your doctor about all of your current medicine to ensure that it is safe.