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A synthetic opioid drug, C21H29NO2, given by injection or nasal spray in its tartrate form to treat pain and to supplement anesthesia.

[but(yl) + (m)orph(in)an, structural basis of a group of opioids; see dextromethorphan + -ol.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
In vitro characterization of a formulation of butorphanol tartrate in a poloxamer 407 base intended for use as a parenterally administered slow-release analgesic agent.
Sedation and analgesia were performed using butorphanol tartrate (4mg [kg.sup.-1], Torbugesic[R], Zoetis, Campinas/SP, Brazil).
The dog was premedicated with acepromazine at a dose of 0.05 mg/kg (intramuscular) and butorphanol tartrate at a dose of 0.5 mg/kg (intramuscular).
Postoperative pain was minimized by administration of two intramuscular injections of 0.2 mg/kg Torbugesic-SA (butorphanol tartrate; Fort Dodge Animal Health, Fort Dodge, IA) at 4-6-hr intervals.
Evaluation of thermal antinociceptive effects and pharmacokinetics after intramuscular administration of butorphanol tartrate to American kestrels (Falco sparverius).
The patients received either 15-20 mL of 0.5% bupivacaine hydrochloride (Group I, n = 30) or 15-20 mL of 0.5% bupivacaine hydrochloride plus 0.5 mg (0.5 mL) butorphanol tartrate (Group II, n = 30).
Pharmacokinetics of butorphanol tartrate in a longacting poloxamer 407 gel formulation administered to Hispaniolan Amazon parrots (Amazona ventrallis).
Butorphanol tartrate; synthesized by Monkovic et al., in 1975 at Bristol Laboratories of Canada.
Liposome-encapsulated butorphanol tartrate, a long-acting preparation, showed promise in psittacine birds, (9-10) with analgesic effects lasting 3-5 days after a single subcutaneous injection.
For this procedure, butorphanol tartrate (1 mg/kg IM) and intraoperative fluids (15 mL/kg IV of 20% Duphalyte diluted in Hartmann solution and 6 mL/kg IV of hydroxyethyl starch colloids in isotonic NaCl solution (Voluven 6%, Fresenius Kabi, Runcorn, Cheshire, UK) were administered.