Find patient medical information for Gabapentin Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Most people take a dose of gabapentin three times a day once they are stabilised on treatment, but always follow your doctor's instructions. Try to space your doses evenly over the day and take. Learn about Neurontin (Gabapentin) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. Gabapentin Guide: Recreational Use, Dosage, High Effect What is Gabapentin For? Gabapentin (Neurontin) is a medicine which is used since 1993 for treatment of seizures, convulsion and epilepsy. First, we must consider the different neuropathic pain types. Neuropathic pain can be diverse in nature, encompassing a wide range of pain types, including post-herpetic neuralgia (PHN), painful diabetic peripheral neuropathy (DPN), and painful cancer-related neuropathies. Detailed Gabapentin dosage information for adults and children. Includes dosages for Restless Legs Syndrome, Epilepsy and Postherpetic Neuralgia; plus renal, liver and dialysis adjustments. Gabapentin comes in many sizes including 100, 300, 400, 600, and 800 mg. The usual dose is 1800-5400 mg a day but the dose can vary depending on how well it works for you and your tolerance of the medication. If you find a dosage level that is satisfactory, there is no reason to increase the medication. If, after you have increased the medication, you find that the previous -- that is, lower. Dosage Instructions. Gabapentin should be taken exactly as prescribed by your doctor. The dosage prescribed depends on the patient and the condition being treated. Gabapentin is used to treat some types of seizures and for postherpetic neuralgia (nerve pain caused by shingles). Learn about side effects, interactions and indications. Gabapentin Dosage. Gabapentin comes in capsule form, as a regular or extended-release tablet, and as a liquid. A typical adult dose for postherpetic neuralgia usually starts at 300 milligrams (mg.