My grandsonsdo not get their Vyvance on weekends and school breaks. After a two day break when they return to school on Monday they are extremely unfocused and impulsive causing disruption in class and halls. Mom says its ok to give them break during these times. Teachers tell me that it takes 2 to 2 1/2 days for them to settle back in at school. Is this something a doctor would say is ok as Mom has indicated.