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Pharmacokinetics Of Butorphanol Following Intravenous And Intramuscular Administration In Donkeys: A Preliminary Study, Lisa S. Ebner, Odette O, Bradley Simon, Ignacio Lizarraga, Joseph Smith, Sherry Cox
Pharmacokinetics Of Butorphanol Following Intravenous And Intramuscular Administration In Donkeys: A Preliminary Study, Lisa S. Ebner, Odette O, Bradley Simon, Ignacio Lizarraga, Joseph Smith, Sherry Cox
Faculty Publications and Other Works -- Large Animal Clinical Sciences
The pharmacokinetics of butorphanol after intravenous (IVB) and intramuscular (IMB) administration in donkeys were determined in this preliminary study. Healthy male gelded donkeys (n = 5), aged 6–12 years old, were administered 0.1 mg/kg butorphanol IV or IM in a randomized, crossover design. Blood samples were obtained at predetermined intervals for 24 h (IVB) and 48 h (IMB) after administration. Plasma butorphanol concentrations were determined by high performance liquid chromatography and pharmacokinetic parameters were calculated. Following IVB administration, mean (± SE) apparent volume of distribution, elimination half-life, total body clearance, and area under the plasma concentration time curve from …