“… molindone … 5‐HTP , precursors of biogenic amines (catecholamines and 5‐HT respectively) preferentially deaminated by MAO‐A, confirming that a metabolite of molindone inhibits MAO‐A. … in molindone‐pretreated rats l‐tryptophan induced behavioural effects, probably because of the MAO‐A inhibitory activity exerted by a metabolite of molindone.”