Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.

1. The effects of chlorpromazine, haloperidol, metoclopramide and domperidone on the release of prolactin from perfused columns of dispersed rat anterior pituitary cells were studied. 2. Chlorpromazine, haloperidol, metoclopramide and domperidone antagonized the dopamine-mediated inhibition of prola...

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Main Authors: Besser, G, Delitala, G, Grossman, A, Stubbs, W, Yeo, T
Format: Journal article
Language:English
Published: 1980
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author Besser, G
Delitala, G
Grossman, A
Stubbs, W
Yeo, T
author_facet Besser, G
Delitala, G
Grossman, A
Stubbs, W
Yeo, T
author_sort Besser, G
collection OXFORD
description 1. The effects of chlorpromazine, haloperidol, metoclopramide and domperidone on the release of prolactin from perfused columns of dispersed rat anterior pituitary cells were studied. 2. Chlorpromazine, haloperidol, metoclopramide and domperidone antagonized the dopamine-mediated inhibition of prolactin release at low concentrations. 3. Each dopamine antagonist displaced the dose-response curve for dopamine-induced suppression of prolactin release to the right in a parallel manner. 4. At higher concentrations, the four drugs became less effective as dopamine antagonists. 5. At high concentrations in the absence of dopamine, chlorpromazine, haloperidol, metoclopramide and domperidone paradoxically suppressed prolactin secretion by an unknown mechanism.
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spelling oxford-uuid:c875b7d6-b179-4406-84f5-59f182dcf93d2022-03-27T06:52:17ZChlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c875b7d6-b179-4406-84f5-59f182dcf93dEnglishSymplectic Elements at Oxford1980Besser, GDelitala, GGrossman, AStubbs, WYeo, T1. The effects of chlorpromazine, haloperidol, metoclopramide and domperidone on the release of prolactin from perfused columns of dispersed rat anterior pituitary cells were studied. 2. Chlorpromazine, haloperidol, metoclopramide and domperidone antagonized the dopamine-mediated inhibition of prolactin release at low concentrations. 3. Each dopamine antagonist displaced the dose-response curve for dopamine-induced suppression of prolactin release to the right in a parallel manner. 4. At higher concentrations, the four drugs became less effective as dopamine antagonists. 5. At high concentrations in the absence of dopamine, chlorpromazine, haloperidol, metoclopramide and domperidone paradoxically suppressed prolactin secretion by an unknown mechanism.
spellingShingle Besser, G
Delitala, G
Grossman, A
Stubbs, W
Yeo, T
Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title_full Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title_fullStr Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title_full_unstemmed Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title_short Chlorpromazine, haloperidol, metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations.
title_sort chlorpromazine haloperidol metoclopramide and domperidone release prolactin through dopamine antagonism at low concentrations but paradoxically inhibit prolactin release at high concentrations
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AT delitalag chlorpromazinehaloperidolmetoclopramideanddomperidonereleaseprolactinthroughdopamineantagonismatlowconcentrationsbutparadoxicallyinhibitprolactinreleaseathighconcentrations
AT grossmana chlorpromazinehaloperidolmetoclopramideanddomperidonereleaseprolactinthroughdopamineantagonismatlowconcentrationsbutparadoxicallyinhibitprolactinreleaseathighconcentrations
AT stubbsw chlorpromazinehaloperidolmetoclopramideanddomperidonereleaseprolactinthroughdopamineantagonismatlowconcentrationsbutparadoxicallyinhibitprolactinreleaseathighconcentrations
AT yeot chlorpromazinehaloperidolmetoclopramideanddomperidonereleaseprolactinthroughdopamineantagonismatlowconcentrationsbutparadoxicallyinhibitprolactinreleaseathighconcentrations