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norepinephrine

Translation
norepinephrine
l-(−)-α-(aminomethyl)-3,4-dihydroxybenzyl alcohol; a catecholamine hormone of which the natural form is d, although the l form has some activity; the base is considered to be the postganglionic adrenergic mediator, acting on α and β receptors; it is stored in chromaffin granules in the adrenal medulla, in much smaller amounts than epinephrine, and secreted in response to hypotension and physical stress; in contrast to epinephrine it has little effect on bronchial smooth muscle, metabolic processes, and cardiac output, but has strong vasoconstrictive effects and is used pharmacologically as a vasopressor, primarily as the bitartrate salt. SYN: levarterenol, noradrenaline.
- n. bitartrate (-)-α-(aminomethyl)-3,4-dihydroxybenzyl alcohol tartrate. For actions and uses, see n.. SYN: levarterenol bitartrate, noradrenaline acid tartrate, noradrenaline bitartrate.

Medical dictionary. 2011.

  
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