Norepinephrine Bitartrate

**Semantic type:** Pharmacologic Substance

**Definition:** A bitartrate salt of norepinephrine, a synthetic phenylethylamine that mimics the sympathomimetic actions of the endogenous norepinephrine. Norepinephrine bitartrate acts directly on the alpha- and beta-adrenergic receptors. Clinically, norepinephrine is used as a peripheral vasoconstrictor that causes constriction of arterial and venous beds via its alpha-adrenergic action. It is also used as a potent inotropic and chronotropic stimulator of the heart mediated through its beta-1 adrenergic action.

**Synonyms:** - (2R,3R)-(R)-4-(2-Amino-1-hydroxyethyl)-1,2-benzenediol, 2,3-Dihydoxybutanedioate Monohydrate (1:1) (Salt) - Levarterenol Bitartrate - Levarterenol Bitartrate Monohydrate - Levophed - NOREPINEPHRINE BITARTRATE - Norepinephrine Bitartrate Monohydrate