Amphetamine is known to inhibit monoamine oxidase, While the flexibility of amphetamine and its metabolites to inhibit different P450 isozymes and other enzymes has not been sufficiently elucidated. In vitro experiments with human microsomes point out slight inhibition of CYP2D6 by amphetamine and small inhibition of CYP1A2, 2D6, and 3A4 https://adderallxrvsvyvansereddit07261.thecomputerwiki.com/4774395/xr_adderall_vs_regular_fundamentals_explained