Ritalin (methylphenidate hydrochloride). The original ADD/ADHD medication, and probably the med still most associated with the disorder. Mouse hated it. It didn’t do anything for her ADD and made her feel yucky. Ritalin is presumed to stimulate not only your frontal cortex, where all the ADD inaction is, but also your brain stem. The brain stem is usually the preserve the standard antipsychotics and the MAOIs. Unlike the other stimulants, Ritalin has some slightly freaky side effects: hair loss (which isn’t all that freaky, until you picture bald kids who aren’t on chemotherapy and don’t have lice) and necrotizing blood vessels (ick). The half-life is about three hours. They came out with a sustained-release version, and it was a total bust. Concerta is the closest thing to sustained-release Ritalin. The initial dosage is 10-15mg, divided into two or three doses. This may be increased, as required to the average dosage of 20-30mg a day. The maximum dosage is 60mg a day. No overseas purchase. At 30mg a day a month’s supply is a little under $80. Novartis.