Cited by 878Schizophrenia research and treatmentNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Antipsychotic Drugs: Direct Correlation Between Clinical Potency and Presynaptic Action on Dopamine Neurons

Seeman, P., Lee, T.·1975·Science

Abstract

Neuroleptic (antipsychotic) drugs inhibited the electrically stimulated release of [3 H]dopamine from rat striatal slices. The concentrations for 50 percent inhibition (ranging from 11.5 nanomolar for spiroperidol to 800 nanomolar for thioridazine) correlated closely with the average daily dosages of 25 neuroleptic drugs used clinically for schizophrenia. The correlation includes butyrophenones, phenothiazines, reserpine, pimozide, clozapine, and (+)-butaclamol. Clinically inactive isomers [trans-thiothixene,trans-flupenthixol, and (-)-butaclamol] required 20 to 1000 times higher concentrations than the active isomers to inhibit release. Compared to the inhibition of [3 H]dopamine release, much higher neuroleptic concentrations were needed to inhibit the electrically stimulated release of other neurotransmitters—[3 H]acetylcholine, [3 H]GABA (γ-aminobutyric acid). The neuroleptic drugs may block the presynaptic coupling between impulse and neurosecretion.

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Crossref · 10.1126/science.1145194

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35 of 35 references verified0 citation errors · 0 not checkable

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Authors
Seeman, P., & Lee, T.
Affiliations
University of Toronto (CA)
Venue
Science
Published
1975-06-20
Volume
188
Issue
4194
Pages
1217-1219
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2006122360
Cited by
869
References
35
Citations by year
2026: 5 · 2025: 8 · 2024: 13 · 2023: 16 · 2022: 22 · 2021: 13 · 2020: 18 · 2019: 36 · 2018: 21 · 2017: 30 · 2016: 26 · 2015: 28 · 2014: 37 · 2013: 23 · 2012: 32
FWCI
62.55
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
antipsychotic drugs, presynaptic dopamine release, striatum, spiperone, thioridazine, butyrophenones, phenothiazines, reserpine, pimozide, clozapine, butaclamol, stereoisomers, acetylcholine release, GABA release, schizophrenia
MeSH terms
Acetylcholine, Animals, Corpus Striatum, Dopamine, Dose-Response Relationship, Drug, Electric Stimulation, gamma-Aminobutyric Acid, Haloperidol, Humans, Male, Neurons, Neurosecretion, Schizophrenia, Tranquilizing Agents, Tritium, Rats

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