http://www.medications.com/effect/view/39844 My son is 5 years old and has been on several different Medications for ADHD he is talking Vyvanse 50 mg for the last 9 mouths. I;m fixing to take him off of all of it because the side effects are worse then the ADHD.. He is cranky, no appetite, sad, and ve Sat, 14 Nov 2009 16:51:47 -0500 http://www.medications.com/effect/view/39844?item=24397 Please let me know how your son is doing after being off of Vyvanse since March. My son is 11 and is currently taking vyvanse 50 mg and has been for the past 2 years. We never had any problems other than him not eating lunch and being a little irritable http://www.medications.com/effect/view/39844?item=24397