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phentolamine

American  
[fen-tol-uh-meen, -min] / fɛnˈtɒl əˌmin, -mɪn /

noun

Pharmacology.
  1. an alpha blocker, C 1 7 H 1 9 N 3 O, used to reduce hypertensive states caused by a catecholamine excess, as in the treatment of pheochromocytoma.


Etymology

Origin of phentolamine

1950–55; phen(o)- + tol(uidine) + -amine; see tolu