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Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | neutered | 15 years and 3 months old | 11.6 lbs
Are there any circumstances under which an elderly 15 year old dog should be given an injection of Simbadol for pain relief due to advanced arthritis in back? My understanding is that Simbadol is for use in cats only, but yet my dog was given an injection of Simbadol four days ago and it seems to have almost killed him. Lost all appetite, refuses water, lethargic, very unsteady on feet, weak, disoriented, blindness. The injection immediately knocked him out and he has still not recovered.
1 Answer

Answered By Lauren Barry, BVSc, MRCVS, DVM
Veterinarian
Published on June 11th, 2017