My son was only 8 yrs old. He complain his painful buttocks. Last yr his doctor also recommend 10 Norgesic tablet when he suffered from legs pain but no sign of involuntry body movement. Till I try to give him the same 2 tablets of norgesic. After 1 day I noticed his involuntry movement so I decided to bring him to the hospital and the doctor said that Norgesic is for adults only. I'm very much worried of what would be posibly happen to my son? Is it a life time involuntry movement in his body? what should I do to stop or cure his involuntary body movement. please help me I can't handle it anymore I'm very much afraid for my son's future..