D Enafaxin 100 XR Tablet is a prescription medicine used in the treatment of depression. This medicine helps by increasing the level of chemical messengers (serotonin and noradrenaline) in the brain that have a calming effect on the brain and relaxes the nerves, thus treating your depression. D Enafaxin 100 XR Tablet is taken by mouth with or without food. Take it at a fixed time each day to maintain consistent level of medicine in the blood. In case you have missed a dose, take it as soon as you remember. Do not 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 doctor as this may worsen your symptoms. Some common side effects of this medicine includes nausea, vomiting, insomnia (difficulty in sleeping), and constipation. It may cause an increase in blood pressure, especially during the first month of treatment, monitor your blood pressure regularly. It may even cause dizziness and sleepiness, 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 as it may lead to suicidal thoughts.