Gabapentin's brand name is neurontin. It is used to treat epilepsy. It is also used for nerve pain and seizures by decreasing abnormal excitement in the brain. It has different variants such as Gabapentin 100 mg, 300 mg, 400 mg, 600 mg, 800 mg, 1200 mg, 1600 mg. Gabapentin is available in both branded and generic forms. Take Gralise tablets with your evening meal. Swallow tablets whole with a full glass of water. Don't chew, break, or crush.