Hi, I am wondering if anyone in Canada has had any good/bad experiences with Biphentin for ADHD symptoms. My little guy is 8 and we've tried Straterra, with not great results. We are on short acting Ritalin right now, on a very small dose and it is working well except for the rebound after school. Concerta is at too high a dose for him, since he is so sensitive to medications. I would love to find a longer acting form, so after school and evenings wouldn't be so hard for him, and so we are looking at Biphentin, as suggested by his psychiatrist.