"i am 18 but i have been taking vyvanse since i was 16 years old at 70mg and still taking the same dose. it is 100% better than concerta xl it has changed my life 

the appetite is not the worst thing i just get really dehydrated and not notice it i can eat after taking it ( 4h after taking it) 

keep in mind i have been on stimulant like meds for years now i have grown to fight the appetite effects"