trimethaphan camsylate

A ganglionic blocking agent that produces vasodilation of brief duration; used in surgery, particularly neurosurgery, to produce a relatively bloodless operative field (controlled hypotension). SYN: trimetaphan camsylate.

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tri·meth·a·phan cam·sy·late (tri-methґə-fən) a short-acting ganglionic blocking agent with direct vasodilator action, used as an antihypertensive to produce controlled hypotension during surgery and for the emergency treatment of hypertensive crises and pulmonary edema due to hypertension, administered intravenously.