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Updated: Sep 12, 2026

Assessing Changes in Volatile General Anesthetic Sensitivity of Mice after Local or Systemic Pharmacological Intervention
Published on: October 16, 2013
Enhancing effect of butorphanol on medetomidine-induced sedation in pigs
M Sakaguchi1, R Nishimura, N Sasaki
1Department of Veterinary Surgery, Faculty of Agriculture, University of Tokyo, Japan.
Abstract:
Enhancing effect of an opiate agonist-antagonist butorphanol (0.2 mg/kg) on sedation induced by medetomidine (80 micrograms/kg) was evaluated in pigs. Butorphanol significantly enhanced the depth of medetomidine-induced sedation and prolonged the duration of that assessed by posture score and spontaneous movement of pigs. The combination of medetomidine and butorphanol produced excellent muscle relaxation and moderate surface analgesia which was enough for procedures with mild pain in pigs.
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