Tapering is the keyword you are looking for. Gradually reducing the dose is a well known method for minimizing withdrawal issues. It has both pros and cons compared to quitting cold turkey. I think a real doctor would probably first get the patient on a less addictive stimulant and then taper that one.

Yeah, sure, but we were talking about giving the person meth, not amphetamines or lisdexamphetamine.

> Are those other humans doctors?

I'm pretty sure doctors are not legally allowed to tell a patient to take illegal drugs, even in a hypothetical situation where they might think it's a reasonable choice.

Desoxyn is meth, they could eventually prescribe it if there was any evidence of therapeutic value in doing so.