Gabatinax M 300mg/500mcg Tablet is a combination medicine used for the treatment of neuropathic pain. This medicine decreases pain by modulating calcium channel activity of the nerve cells. Gabatinax M 300mg/500mcg Tablet is taken by mouth with or without food, preferably at bedtime. It is advised to take medicine at the same time each day as this helps to maintain a consistent level of medicine in the body. Take this medicine in the dose and duration advised by your doctor. If you miss a dose of this medicine, take it as soon as you remember. Finish the full course of treatment even if you feel better. It is important that this medication is not stopped suddenly without talking to the doctor. Some common side effects of this medicine are nausea, peripheral edema, ataxia, blurred vision, fever and nystagmus (involuntary eye movement). It may also cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. It is important to inform your doctor if you develop any unusual changes in mood or behavior, new or worsening depression, or suicidal thoughts. Before taking the medicine you should tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding. It can usually be mixed safely with other medicines but some drugs (including antacids and alcohol) do affect the way it works and can increase the chance of side effects.