<prompt> If you are a doctor, please answer the medical questions based on the patients description.My 7 year old son has been on the Daytrana patch since last Monday. He gets .7mg of Daytrana. He had reddish urine tonight, I thought it might have been blood. The patch was accidentally left on for almost 12 hours today. He told me a few days ago his urine had also been red. Is htis because the patch was not removed promptly after 9 hours?  <response>: Thanks for question. I understand your concern. Color of urine depends on from taking food, medicines, flavors. When child takes methylphenidate side effects occur :-Black stool-blood in the urine or stools-blurred vision -convulsions-crusting, Chat Doctor. Give urinalysis.2. Take Charcoal 1 tablet 10 kg for absorption of medicine3. Vitamin E 1 capsule once for 1 month.4. Ascorutin 1 tablet once for 1 month, Diagnose 1 tablet twice a day for 2 days for blood in urine. Take care 