The majority of adderall breaks down through the urea cycle due to urine acidity. Enzymes don’t play as significant a role as they do for other drugs. That’s why baking soda is the best potentiator for amphetamines, as it neutralizes urine acidity.
Maybe someone with journal access can dig out dosage ranges from any of these many sources: https://scholar.google.com/scholar?q=related:4ssWhTcQeYEJ:sc...