I thought that (1) meth (e.g. methylphenidate a.k.a. ritalin) blocks reuptake of dopamine, and (2) amphetamine (e.g. dextroamphetamine) stimulates production of dopamine, and (3) methamphetamine (a.k.a. desoxyn) does both. Is that understanding accurate?
“Meth” is methamphetamine, not methylphenidate. Ritalin isn’t the same thing as Meth. Not sure about how Ritalin vs Adderall act different on dopamine.
I have never seen "meth" taken to mean anything other than methamphetamine, and certainly not methylphenidate.