Follow-Up: I am looking for some advice about the switch from ritalin to dexedrine. My 10 yr old son went from ritalin to dexedrine 1 1/2 months ago, and at first things seemed to be okay. He is now so with drawn on these meds, almost like a zombie and seems to have a very hard time sleeping at night. He is currently taking 15mg time relase capsules, which he was excited about because he only had to take it once a day, however, he is very apprehensive about taking it at all now. I feel the dosage is to high and would like to know if it comes in a lower mg, and time release?