Methylphenidate is a stimulant medication [0]. Maybe you meant something else, like atomoxetine?
[0] https://en.wikipedia.org/wiki/Methylphenidate?wprov=sfti1#
[0] https://en.wikipedia.org/wiki/Methylphenidate?wprov=sfti1#
I should have said it's not a direct agonist. Instead of directly causing dopamine release, it acts as an allosteric modulator on DAT to affect reuptake.
I had a study in mind that found switching to MPH was effective at lowering the equivalent dose (the tolerance did not carry over), but my Googling is failing me right now. Appreciate the correction.