Answer:
No, it is not. Although it is very similar to amphetamine in many ways, Ritalin (methylphenidate) is NOT an amphetamine.
http://en.wikipedia.org/wiki/Ritalin
wikipedia is not a reliable source. and you contradict yourself in your explanation. To say that a a fuji apple is not a Washington apple would be correct; But, to say that that meant that it also was not an apple would just be absurd. Ritalin affects the brain as a psycho-stimulant that alters the chemical makeup of the brain and can significantly increase levels of dopamine and norepinephrine. effectively doping whoever is taking it. Ritalin is a class A drug, Highly addictive, with a plethora of side effects.