in addition , because the integrity of the adrenal medulla is necessary for the enhancing action of 4-oh amphetamine and because 4-oh amphetamine reduces concentrations of catecholamines in the brain and adrenal medulla , it is possible that 4-oh amphetamine affects retention performance by a dual action on the brain and the adrenal medulla .
C0086045
concentrations
C0006104
brain