Gabapentin mimics a chemical messenger in the brain called GABA (gamma-aminobutyric acid). This can reduce the release of neurotransmitters that overstimulate the nervous system and trigger anxiety, panic, and pain. Learn about the side effects of gabapentin, from common to rare, for consumers and healthcare professionals. Gabapentin is a prescription medicine used to treat seizures, pain after shingles, restless legs syndrome, and off-label uses. Learn about side effects, dosage, uses, warnings, interactions, and brand differences. In the US, gabapentin is indicated for the treatment of postherpetic neuralgia and as an adjunctive therapy in the treatment of partial-onset seizures without secondary generalization in people with epilepsy. [7] Overview: Gabapentin is used to treat certain people with seizures or nerve pain. Common side effects may include dizziness, sleepiness, or trouble with balance or coordination. Serious side. Gabapentin is used to help control partial seizures (convulsions) in the treatment of epilepsy. This medicine cannot cure epilepsy and will only work to control seizures for as long as you continue to take it. While it can be highly effective and even life-changing for some, gabapentin can also cause side effects, carry risks and is sometimes misused. Gabapentin calms overactive nerves in your body. It prevents and controls seizures and nerve pain. Gabapentin capsules, tablets, and oral solution are used along with other medications to help control certain types of seizures in people who have epilepsy. Gabapentin is approved to prevent and control partial seizures, relieve postherpetic neuralgia after shingles and moderate-to-severe restless legs syndrome. Learn what side effects to watch for, drugs to avoid while taking gabapentin, how to take gabapentin and other important questions and answers.