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ADHD Medication - Concerta Concerta and Ritalin LA are both used to treat attention deficit hyperactivity disorder (ADHD). Both contain methylphenidate which is the same drug. However, they release it differently in your body. Studies conducted on the subject show that Concerta reduces inattention among children and adults who use it. It also improves certain of their other ADHD symptoms. What is Concerta? Concerta contains methylphenidate, which is part of the class of drugs known as