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Antagonista adrenérgico

En farmacología, un antagonista adrenérgico o bloqueante adrenérgico es una sustancia que actúa inhibiendo la acción de los receptores adrenérgicos, por lo que es un tipo de simpaticolítico y tiene acciones contrarias a los agonistas adrenérgicos.

Función

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Los antagonistas adrenérgicos bloquean las acciones de los neurotransmisores endógenos adrenérgicos epinefrina y norepinefrina. Por el momento no se conocen acciones de utilidad clínica anti-dopaminérgicos en el sistema nervioso periférico, pero el bloqueo de receptores dopaminércios en el sistema nervioso central son de gran importancia clínica.[1]

Clasificación

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Específicamente, los antagonistas adrenérgicos pueden ser divididos en dos grupos:

Referencias

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  1. a b c Katzung, Bertram G. (2007). «10». Basic & Clinical Pharmacology (9 edición). McGraw-Hill. p. 199. ISBN 0071451536. «Blockade of peripheral dopamine receptors is of no recognized clinical importance at present. In contrast, blockade of central nervous system dopamine receptors is very important.» 

Enlaces externos

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Antagonista adrenérgico
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