5%) reported
in children and adolescents was upper abdominal pain. The most common adverse reactions
in double-blind clinical trials (>5%) in adult patients were decreased appetite, headache, dry mouth, nausea, insomnia, anxiety, dizziness, weight decreased, irritability, and hyperhidrosis."
http://www.concerta.net/adult/adhd-medication-safety-concerta-side-effects.html
Cheers.........