Xylazine-morphine sequence to obtain analgesia in the horse and dog.
D000698:Analgesia / Q000662:veterinary*; D000818:Animals; D004285:Dogs; D006736:Horses; D009020:Morphine; D013843:Thiazines; D014991:Xylazine
D013843:Thiazines; D014991:Xylazine; D009020:Morphine