Symptoms. Both those who abuse gabapentin (also known as neurontin) and those who take it as prescribed can experience some form of withdrawal when the drug is stopped. Gabapentin comes as a capsule, a tablet, an extended-release (long-acting) tablet, and an oral solution (liquid) to take by mouth. Gabapentin capsules, tablets, and oral solution are usually taken with a full glass of water (8 ounces [240 milliliters]), with or without food, three times a day. Beating cancer takes more than medicine. That’s why we do much more than breakthrough research. We also o er free rides to chemo, a live 24/7 helpline, and free lodging near hospitals for people dealing with every type of cancer. We’re attacking from every angle. Gabapentin was originally formulated and approved for treating convulsions and seizures. Gabapentin interacts with the neurotransmitter glutamate and slows down its effects, making those taking this drug less likely to have a seizure. Do not take GRALISE if you are allergic to gabapentin or any of the ingredients in GRALISE. Do not change your dose or stop taking GRALISE without talking with your healthcare provider. Gabapentin (Neurontin) is an anticonvulsant medication in the GABA analog lass that was originally created to help manage epilepsy, but is also utilized to help individuals suffering from neuropathic pain. Gabapentin official prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions, pharmacology and more. How to use Gabapentin Tablet, Extended Release 24 Hr. Read the Medication Guide provided by your pharmacist before you start taking gabapentin and each time you get a refill. Do not take GRALISE if you are allergic to gabapentin or any of the ingredients in GRALISE. Do not change your dose or stop taking GRALISE without talking with your healthcare provider. Gabapentin Tablets are indicated for: Management of postherpetic neuralgia in adults; Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy.