My son who is 20 years old and pursuing Engineering, has been under treatment of Tegrital (carbamazepine) from the age of 3. He had simple partial focal seizures which were controlled by Tegrital. However, whenever tapering was advised after event free period of 3 years, seizures recurred. In last 17 years there have only been 3 or 4 instances of recurrence of seizures. Last he had was in early 2015. My son now plans to pursue his masters in USA. Would it be possible to pursue studies in US with the above pre existing conditions. Secondly, what is the probability of discontinuing Tegrital with no recurrence of seizure.