NEURONTIN® Capsules, for Oral Use. NEURONTIN® (gabapentin) Tablets, for Oral Use. NEURONTIN® (gabapentin) Oral Solution. DESCRIPTION. The active ingredient in NEURONTIN capsules, tablets, and oral solution is gabapentin,which has the chemical name 1-(aminomethyl)cyclohexaneacetic acid. Actually gabapentine is the only thing that has helped my toothache, ever. Because it is for nerve pain and I have a damaged nerve which causes the toothache. 800 mg works well.but be careful because it will cause dizziness Find a comprehensive guide to possible side effects including common and rare side effects when taking Neurontin (Gabapentin) for healthcare professionals and consumers. I’ve taken both gabapentin and Lyrica for neuropathy from spinal cord trauma. They both helped with the unrelenting pain however, they significantly interfered with my memory- Lyrica more so than gabapentin. How to use Gabapentin. Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start taking gabapentin and each time you get a refill. At 34 I've dealt with a lot of Heath issues/pain. Sciatica nerve pain is horrible, I feel for you all. This can be hell, I just started this medication again, and intend on trying to soldier through the side effects this time, as it's bilateral sciatica now. Gabapentin (Neurontin, Gralise, and others) is a prescription drug used to treat seizure disorders and nerve damage from shingles. Off label uses (non-FDA approved) include fibromyalgia, headaches, and hot flashes. Common side effects are fatigue, nausea, hostility, dizziness, and tremors. Gabapentin is approved by the Food and Drug Administration to treat epilepsy and pain related to nerve damage, called neuropathy. Also known by its brand name, Neurontin, the drug acts as a sedative. The Comparative Evaluation of Gabapentin and Carbamazepine for Pain Management in Guillain-Barr?? Syndrome Patients in the Intensive Care Unit Physicians most often will prescribe the generically named gabapentin in 300Mg doses either once per day or three times each day, depending upon the condition for which it has been ordered.