My six year old experienced getting very tired and sleepy during school. He also was chewing on pencils and would cry over anything. I would give him the medicine at home and send him to school so I didn't really see all the symptoms. Luckily his teacher did notice that something was not right. After he would be at school for a couple of hours she noticed that he would want to sleep a lot and he chewed pencils like he stayed nervous and pulled at his hair when he would get frustrated. She also started noticing that he was turning a light shade of blue around the lips. She decided to take him to the school nurse. The nurse found that his blood pressure had bottomed out and she could not even get his oxygen level to register. If it hadn't been for the teacher recognizes these symptoms and realizing that something was wrong I would have never known because I didn't give him the medicine on the weekends. He was having somewhat of an allergic reaction to the medicine. I'm not saying that this is what is happening to your child but my advice would be to watch him closely and monitor his vital signs after the medicine has been in his system for a little while. They may be able to just change his medicine.

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