Postoperative Analgesic Effects of Epidural Administration of Methadone, Tramadol, or Nalbuphine in Ovariohysterectomized Dogs

Rafael DeRossi, Larissa C. Hermeto, Beatriz C. Marques and Paulo H.A. Jardim

Asian Journal of Animal and Veterinary Advances 10 ( 11 ): 772 - 780 , 2015