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Article
October 1985

Treatment of Hyperactive Children With Monoamine Oxidase InhibitorsI. Clinical Efficacy

Author Affiliations

From the Child Psychiatry Branch (Drs Zametkin and Rapoport and Ms Ismond) and the Clinical Neuropharmacology Branch (Dr Murphy), National Institute of Mental Health, Bethesda, Md; and the Laboratory of Clinical Studies, National Institute of Alcohol Abuse and Alcoholism, Bethesda, Md (Dr Linnoila). Dr Zametkin was a child psychiatry fellow at George Washington University, Washington, DC.

Arch Gen Psychiatry. 1985;42(10):962-966. doi:10.1001/archpsyc.1985.01790330042005
Abstract

• Fourteen boys (mean age, 9.2±1.5 years) with Attention Deficit Disorder (ADD) With Hyperactivity were treated with dextroamphetamine sulfate or a monoamine oxidase inhibitor (MAOI) (six received clorgyline, eight received tranylcypromine sulfate) for four weeks each in a double-blind, cross-over study that included a two-week placebo washout between active drug periods. The MAOIs had immediate, clinically significant benefit and were clinically indistinguishable from dextroamphetamine. Most children responded to both stimulant and MAOI. These findings of equivalent efficacy of MAOIs in ADD are in contrast to our previous studies with neurotransmitter system selective agents, which showed only weak effects, and suggest that multiple neurotransmitter alterations may be required for stimulant drug effects in ADD. The immediate response to MAOIs indicates a different mechanism from that mediating antidepressant effect. The MAOIs may be useful alternate treatments in selected cases of ADD.

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