Those are some really bad comparisons. Caffeine and adrenaline have nothing to do with each other. A better comparison might be maybe heroin and morphine?
Methamphetamine and the amohetamines in Adderal aren’t all that different. Same mechanism of action, similar pharmacology. Meth is actually sold in the US as a Desoxyn. It still blows my mind that it’s Schedule II (classified as having legitimate medical uses) when cannabis is still Schedule I.