Concerta XL

[DebMG]

my daughter uses concerta xl twice a day she is 17 and not on the weekend, I think she's getting withdrawal symptoms , today she nearly passed out in town , does anyone have the same problem, plus her appitite had all but gone !!.

[Steff3]

My son takes concerta XL he's 15. His appetite is very minimal whilst on meds but as with you he doesn't have them at weekends. His appetite increases then and I have noticed a degree of lethargy on and off them. But hes never passed out or been close. I would definitely focus on the food side of things.
He also has ASD and dyspraxia so I cant make him eat, I just save his fave meals for days he isn't on meds. He eats far more then. Good luck.