Of course, Ritalin is not perfect and you cannot expect a miracle. Stimulants don't work for all ADHD children and nothing will transform a problem child into an angel. What you must look for is significant improvement worth the effort and the risk. That's all, just significant improvement.
Head injuries include both injuries to the brain and those to other parts of the head, such as the scalp and skull. Head injuries can be closed or open. A closed (non-missile) head injury is where the dura mater remains intact. The skull can be fractured, but not necessarily.
Head trauma and the resulting brain injuries are one of the leading causes of death and disability in the industrialized world. In the United States, more than 50,000 people die every year as a result of traumatic brain injury. Furthermore, it is estimated that a head injury occurs every seven seconds, and hospital emergency rooms treat 1 million people for brain injuries every year.