Studies on accumulation of (14C)-mescaline in brain homogenates: effects of psychotropic and other agents.

Abstract:

:Incubation of rat brain homogenates or 14,500 g pellet isolated from the homogenate with (14C)-mescaline was associated with accumulation of (14C)-mescaline in the pellet. 1.33 mumol/ml of chlorpromazine, trifluoperazine, fluphenazine, imipramine, desmethylimipramine, nortriptyline and amitriptyline inhibited the accumulation of mescaline. Lower concentrations (0.133-0.44 mumol/ml) of the psychotropic drugs were less effective. The tricyclic antidepressants were less potent than the tranquilizers. Although the trimethoxyphenylacetic acid (TMPA) levels of the pellet were also reduced by the psychotropic drugs, the TMPA:mescaline ratios were unchanged indicating that the drugs had no effect on the metabolism of mescaline. The inhibition of accumulation of mescaline by the high concentrations of tranquilizers may divert more of the hallucinogen to the receptor site. Thus, an explanation for the reported worsening of clinical syndrome of hallucinogenic poisoning by tranquilizers is provided.

journal_name

Pharmacology

journal_title

Pharmacology

authors

Shah NS,Gulati OD

doi

10.1159/000136916

subject

Has Abstract

pub_date

1975-01-01 00:00:00

pages

273-80

issue

4

eissn

0031-7012

issn

1423-0313

journal_volume

13

pub_type

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