Hi! Same issues here…My son was on a time release (8 hr) 20 mg Methylphenidate and we are switching to a 12 hr time release formula (same dosage). I’m hoping this won’t interfere with his sleep or hunger in the evenings but I thought it was worth a try as he becomes very impulsive at his after school program when the med wears off around 4pm. You may want to explore this option with your doctor. Good luck!