The main difference between methylphenidate (Ritalin), when taken as a medication for attention deficit disorder, and cocaine, when taken as a drug of abuse, is that methylphenidate:
A) inhibits receptors that cocaine excites.
B) produces the same effects more slowly.
C) attaches to a different set of receptors.
D) increases metabolic rate whereas cocaine decreases it.

Question

Quizplus · Accepted Answer

Methylphenidate and cocaine both block the reuptake of dopamine, but methylphenidate does so more gradually, leading to a slower onset of effects and a lower potential for abuse.

The Main Difference Between Methylphenidate (Ritalin), When Taken as a Medication