Amphetamine is known to inhibit monoamine oxidase, Whilst the power of amphetamine and its metabolites to inhibit several P450 isozymes along with other enzymes has not been adequately elucidated. In vitro experiments with human microsomes show minor inhibition of CYP2D6 by amphetamine and small inhibition of CYP1A2, 2D6, and 3A4 https://waylonayqjd.oneworldwiki.com/5932334/helping_the_others_realize_the_advantages_of_adderall_xr_dosage_chart