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Article
December 1985

Selective Antidepressants and Cerebrospinal FluidLack of Specificity on Norepinephrine and Serotonin Metabolites

Author Affiliations

From the Section on Clinical Psychopharmacology, Laboratory of Clinical Science, National Institute of Mental Health, Bethesda, Md.

Arch Gen Psychiatry. 1985;42(12):1171-1177. doi:10.1001/archpsyc.1985.01790350045009
Abstract

• Cerebrospinal fluid concentrations of the norepinephrine metabolite, 3-methoxy-4-hydroxyphenylglycol (MHPG), the serotonin metabolite, 5-hydroxyindoleacetic acid (5-HIAA), and the dopamine metabolite, homovanillic acid, were measured in depressed patients before and after treatment with three putatively specific antidepressants. The expected specificity of action on these three neurotransmitter metabolites was not observed. Desipramine hydrochloride, a norepinephrine uptake inhibitor, reduced 5-HIAA as well as MHPG concentrations; zimeldine hydrochloride, a serotonin uptake inhibitor, reduced MHPG as well as 5-HIAA concentrations; and clorgyline, a selective monoamine oxidase type A inhibitor, which might be predicted to most affect 5-HIAA, dramatically reduced MHPG, moderately reduced homovanillic acid, and only modestly reduced 5-HIAA concentrations.

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