IntroductionMethylin ER is an extended-release formulation of methylphenidate, a central nervous system stimulant commonly prescribed to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. It belongs to the broader methylphenidate family, which includes well-known brands like Ritalin. It delivers a prolonged effect, typically lasting for about 8 hours, helping patients manage symptoms more consistently throughout …