tolazoline

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun pharmacy A non-selective competitive α-adrenergic receptor antagonist, a vasodilator used to treat spasms of peripheral blood vessels (as in acrocyanosis) and in veterinary medicine to reverse xylazine-induced sedation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun vasodilator that is used to treat spasms of peripheral blood vessels (as in acrocyanosis)