Ritalout

Ritalout is a fake drug that negates the effects of Ritalin. In the episode "Timmy 2000" everyone is diagnosed with ADD and are prescribed with Ritalin. However they over dose on it and doctors come up with a cure (even though Ritalin isn't disease) called Ritalout.

Trivia

 * Ritalout is a joke on the fact that the opposite of 'in' is 'out', so Ritalout should negate the effects of Ritalin.