Want to buy Gabapentin Online? Here we are with the solution, Gabapentin is in a class of medications called anticonvulsants. Gabapentin treats seizures by decreasing abnormal excitement in the brain. Gabapentin relieves the pain of PHN by changing the way the body senses pain. It is not known exactly how gabapentin works to treat restless legs syndrome. It is available in the Market as both a brand name product and a generic product (chemically the same, usually lower cost than the brand name product). Brand names of gabapentin include Horizant®, Gralise® and Neurontin®.