Ritalin is a medication prescribed for conditions like attention deficit disorder (ADD), attention deficit hyperactivity disorder (ADHD), and narcolepsy. It contains methylphenidate hydrochloride, a stimulant that affects the central nervous system. Ritalin comes in immediate-release and extended-release versions, with dosages varying based on the form. Proper usage under medical guidance is crucial, often as part of a comprehensive treatment plan that may include therapy. Misuse of Ritalin can have severe consequences such as addiction or overdose. Safely storing and disposing of any unused medication is important. Common side effects include changes in heart rate, blood pressure, appetite, as well as sleep disturbances and anxiety. Serious side effects like heart complications, psychosis, and circulation problems can occur. Regular monitoring by a healthcare provider is essential for the safe and effective use of Ritalin.