Dexedrine is the medication used to handle deficit hyperactivity disorder ( ADD). Dexedrine changes the number of natural substances in the brain and helps to stay focused, improve listening skills, pay attention and help to control behavior problems. Buy Dexedrine Online at best price. Dexedrine is always prescribed by the doctor if you feel sleepy in the daytime, it is difficult to pay attention, differences in brain development and brain activity are not able to control yourself, etc. This medicine comes both in liquid and tablet form. The liquid form of medicine is generally taken once or twice a day. Some side effects of this medicine: Changes in your mood, Fast heart beating.