Gabapentin 800 mg is a painkiller that is also sold under the brand name Neurontin. It is a drug in the Gabapentinoids class. The shape of gamma-aminobutyric acid (GABA), a chemical in the brain that affects the nervous system, is also like this one. Gabapentin is a sedative that is often given to people who have seizures. On the other hand, it’s also used to treat neuropathic pain, fibromyalgia, diabetic neuropathy, hot flashes, and detox from cocaine, drugs, and alcohol. Gabapentin is often used instead of opioid medicines because users are less likely to become dependent on it. But for many who use it, it does and can turn into addiction and abuse.