1980British Journal of PharmacologyOpen access

METERGOLINE AND CYPROHEPTADINE SUPPRESS PROLACTIN RELEASE BY A NON‐5‐HYDROXYTRYPTAMINERGIC, NON‐DOPAMINERGIC MECHANISM

G. M. Besser, Giuseppe Delitala, Ashley Grossman, Tun Kuan Yeo

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Abstract

A dispersed rat anterior pituitary cell system has been used to investigate the effects of cyproheptadine and metergoline on prolactin secretion. Both drugs were potent inhibitors of prolactin secretion. However, the inhibition was not antagonized by either 5-hydroxytryptamine or a variety of dopamine antagonists. We conclude that both drugs act through mechanisms that are neither 5-hydroxytryptaminergic nor dopaminergic.

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A dispersed rat anterior pituitary cell system has been used to investigate the effects of cyproheptadine and metergoline on prolactin secretion. Both drugs were potent inhibitors of prolactin secretion. However, the inhibition was not antagonized by either 5-hydroxytryptamine or a variety of dopamine antagonists. We conclude that both drugs act through mechanisms that are neither 5-hydroxytryptaminergic nor dopaminergic.

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Available abstract

A dispersed rat anterior pituitary cell system has been used to investigate the effects of cyproheptadine and metergoline on prolactin secretion. Both drugs were potent inhibitors of prolactin secretion. However, the inhibition was not antagonized by either 5-hydroxytryptamine or a variety of dopamine antagonists. We conclude that both drugs act through mechanisms that are neither 5-hydroxytryptaminergic nor dopaminergic.

Key concepts: Metergoline, Cyproheptadine, Dopaminergic, Prolactin, Dopamine, Endocrinology, Secretion, Internal medicine

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METERGOLINE AND CYPROHEPTADINE SUPPRESS PROLACTIN RELEASE BY A NON‐5‐HYDROXYTRYPTAMINERGIC, NON‐DOPAMINERGIC MECHANISM — Research Paper | ScholarLens