Concerta is a prescription medication primarily used to treat Attention Deficit Hyperactivity Disorder (ADHD) in children and adults. It contains the active ingredient methylphenidate, which helps increase attention and decrease impulsiveness and hyperactivity by affecting certain chemicals in the brain. Concerta is designed as an extended-release tablet, allowing for a gradual release of the medication throughout the day. This means that patients typically take it once in the morning, and its effects can last up to 12 hours, providing consistent symptom control without the need for multiple doses.