ZEN 200 Tablet is an anti-epileptic medicine used to treat epilepsy. It helps prevent certain types of seizures (fits). It is also prescribed for a painful condition of the face, head, and neck known as trigeminal neuralgia and diabetes-related nerve pain (diabetic neuropathy). ZEN 200 Tablet must be taken with or without food, but take it at the same time every day. The dose and how often you need to take it will be decided by your doctor so that you get the right amount to control your symptoms. It may be increased gradually. Many other medicines can interfere with this medicine so tell your doctor about all the medicines you are taking to make sure it is safe.You can take this medicine with or without food but take it regularly at the same time each day to get the maximum benefit. It is important to take this medicine for as long as you are advised, even if you feel well. Missing even a single dose may trigger a seizure and, if you stop taking it abruptly, your condition may get worse.The most common side effects of this medicine include nausea, vomiting, feeling dizzy, tired or drowsy, unsteadiness (balance disorder), constipation, dry mouth, and itching. Some people may develop blurring of vision and slurred speech. Most of the side effects are not serious. However, let your doctor know straight away if you notice a skin rash or if your mood becomes depressed or if you develop any thoughts about harming yourself. Before taking ZEN 200 Tablet, tell your doctor if you have any heart problems, kidney or liver disease, difficulty in urinating, or any mental illness like depression. These conditions may affect your treatment. You may be advised some blood tests (eg. CBC) before starting treatment and then periodically thereafter, to monitor your progress.