Valfax 75mg Tablet ER is used in the treatment of depression and anxiety disorder. It alters the chemicals in the brain that cause symptoms of anxiety such as irritability, restlessness, lack of concentration, fatigue, sweating, increased heart rate, and unwanted or racing thoughts. Valfax 75mg Tablet ER should be taken with food. It is advised to take this medicine at a fixed time each day to maintain a consistent level in the blood. If you miss any doses, take it as soon as you remember. Do not skip any doses and finish the full course of treatment even if you feel better. This medication mustn't be stopped suddenly as it may worsen your symptoms. Some common side effects of this medicine include nausea, vomiting, insomnia (difficulty in sleeping), decreased appetite, anxiety, constipation, increased sweating, and sexual dysfunction. It may cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. However, these side effects are temporary and usually resolve on their own in some time. Please consult your doctor if these do not subside or bother you. Before taking Valfax 75mg Tablet ER, inform your doctor if you have any problems with your kidneys, heart, liver, or have a history of seizures (epilepsy or fits). Inform your doctor if you develop any unusual changes in mood or behavior, new or worsening depression, or if you have any suicidal thoughts.