Gabapentin Tablets package insert / prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions and pharmacology. Gabapentin extended-release tablets (Horizant) are used to treat restless legs syndrome (RLS; a condition that causes discomfort in the legs and a strong urge to move the legs, especially at night and when sitting or lying down). Gabapentin is in a class of medications called anticonvulsants. After the US state of Kentucky implemented stricter legislation regarding opioid prescriptions in 2012, there was an increase in gabapentin-only and multi-drug use from 2012 to 2015. Gabapentin is a prescription drug most commonly prescribed to relieve nerve pain following shingles in adults and the pain of postherpetic neuralgia. Learn about side effects, drug interactions, dosages, warnings, and more. 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. Gabapentin may be administered as the oral solution, capsule, or tablet, or using combinations of these formulations. Dosages up to 50 mg/kg/day have been well tolerated in a long-term clinical study. The maximum time interval between doses should not exceed 12 hours. Gabapentin, available in both branded and generic forms, is used to treat partial seizures, postherpetic neuralgia following shingles and restless legs syndrome. About gabapentin Gabapentin (Neurontin) is an inexpensive drug used to control partial seizures in adults with epilepsy. It is also used to treat certain types of nerve pain. This drug is more popular than comparable drugs. It is available in generic and brand versions. 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. Gabapentin is commonly used to treat and prevent seizures in people with epilepsy or to treat nerve pain (postherpetic neuralgia) that can occur after a viral infection called shingles.