2 things can be true at once: Adderall works to treat ADHD as prescribed *AND* adderall can be abused.
An example of abusing adderall would be someone snorting it before a speech.
Finally, nuanced discussion is not stigmatization. Take medicine as prescribed—but don’t abuse it.
Adderall is a stimulant that improves concentration/focus in people with ADHD. It doesn’t cause slurring or confusion, nor does it make people lie.
Instead of blaming Trump’s behavior on medication, perhaps consider that the problem resides within him.