Ritalin, the brand name for methylphenidate hydrochloride, continues to be one of the most widely prescribed and longest-established stimulant medications for attention deficit hyperactivity disorder (ADHD) and narcolepsy across the United States, United Kingdom, Germany, France, Netherlands, Switzerland, Finland, Austria, Canada, Australia, Japan, China, and many other countries in 2026. First approved in 1955, it […]