Amfeta 150 Tablet ER is used in the treatment of depression and smoking addiction. This medicine helps by increasing the level of chemical messengers in the brain that relax the nerves and have a calming effect on the brain. Amfeta 150 Tablet ER may be taken with or without food. It is advised to take this medicine at a fixed time each day. You should never 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 insomnia (difficulty sleeping), allergic reaction, impaired concentration, sweating, headache, nausea, vomiting, and dry mouth. It even causes dizziness and sleepiness, so do not drive or do anything that requires mental focus. Moreover, most of the side effects are immediate and often go away with time. Please consult your doctor if these bother you or do not go away. Before taking this medicine it is important to inform your doctor if you have any history of seizure or if you drink alcohol. Inform your doctor if you develop any unusual mood changes or if you have any suicidal thoughts.