My son is currently taking Concerta 36 mg. This is the maximum dose for his weight. He is 9 and a half years old and 47 pounds. We were thinking of switching based on a psychological assessment, as well as because he has no appetite at school. He has also developed some nervous tics, like pulling at his lip or hair etc. The Concerta has helped him somewhat in school, but maybe not enough. The Strattera prescribed to him is the minimum dose of 18mg. Are there any benefits of Strattera over Concerta, and also, what are the initial side effects of taking Strattera (if any). Do we need to taper off the Concerta first?