Ritalin 10 mg contains methylphenidate hydrochloride, a prescription central nervous system stimulant. It is indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. The 10 mg tablet is an oral dosage form. Ritalin is a Schedule II controlled substance and has important risks associated with abuse, misuse, and addiction. It should be used only as prescribed and under the supervision of a qualified healthcare professional.