Thanks for the response. Cartrophen was actually administered on 10/1. I took him to a holistic clinic.Four days later he stopped eating completely and struggled to walk. On the 7th, I took him in for a second injection and acupuncture. He could not use his rear legs after this and needed assistance to leave the clinic. It was rapidly downhill after this. He would not eat or drink and could barely walk. He tried to throw up but couldn't. He could wag his tail. We put him down on Monday. Our regular vet was surprised at the deterioration. He believed he had at least 6 months.
After our vet expressed his surprise(he did not know that I had gone to the other clinic), I went online to read about Cartrophen. I was sickened to read that I was the cause of my dogs rapid demise.