Unsuccessful Chemical Immobilization of a Roan Antelope (Hippotragus equinus) Using a Premixed Medetomidine-Ketamine Combination

J Wildl Dis. 2022 Oct 1;58(4):935-938. doi: 10.7589/JWD-D-21-00198.


We unsuccessfully attempted to safely chemically immobilize a roan antelope (Hippotragus equinus) with a premixed combination of medetomidine (5 mg/mL) and ketamine (150 mg/mL) for injury treatment. This dose (0.066 mg/kg medetomidine and 1.96 mg/kg ketamine) produced poor quality of immobilization, probably exacerbated by stimulation before completing induction.

MeSH terms

  • Animals
  • Ketamine*
  • Medetomidine* / pharmacology


  • Medetomidine
  • Ketamine