Preza-AT Tablet is a prescription medicine used in the treatment of neuropathic pain. It works by increasing the level of chemical messengers in the brain. This helps in regulating the mood and stopping the movement of pain signals from nerves to brain. Preza-AT Tablet is taken by mouth with or without food. However, it is advised to take it at a fixed time each day to maintain a consistent level of medicine in the blood. In case you miss a dose of this medicine, take it as soon as you remember. Try never to skip any doses and 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 as it may worsen your symptoms.Some common side effects of this medicine include constipation, weight gain, sleepiness, dryness of mouth, and increased heart rate. Initially, this medicine may cause a sudden drop in the blood pressure when you change positions, so it is better to rise slowly if you have been sitting or lying down. It even causes dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. This medicine may cause weight gain and to control it, you should exercise regularly and take a balanced diet. Remember to inform the doctor if you develop any unusual changes in the mood as this medicine may lead to suicidal thoughts.Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.