Purchasing Ritalin online by using our trusted and most recomended payment method which is "PayPal involves" navigating several important considerations to ensure the transaction is both safe and legal without prescription. Ritalin, also known by its generic name methylphenidate, is a central nervous system stimulant medication primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. It works by increasing the levels of certain neurotransmitters, such as dopamine and norepinephrine, in the brain, which helps to improve focus, reduce impulsivity, and enhance overall cognitive function.