Compositions for the transdermal delivery of methylphenidate in a flexible, finite form are described. The compositions comprise a polymer matrix that includes methylphenidate or a pharmaceutically acceptable salt and at least one acrylic polymer that is non-reactive with methylphenidate. Methods using the compositions to achieve transdermal delivery of methylphenidate or for treating Attention Deficit Disorder (ADD) and/or Attention Deficit/Hyperactivity Disorder (ADHD), postural orthostatic tachycardia syndrome, or narcolepsy also are described.