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Medical Term:

sodium nitroprusside


a rapidly acting and potent arterial and venous vasodilator used in hypertensive emergencies and administered intravenously. Acts in a manner similar to that of vasodilator nitrates and nitrites by donating nitric oxide that produces vasodilation; also used as a reagent for detection of organic compounds in the urine.

Synonym(s): sodium nitroferricyanide

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