Updated On September 23rd, 2025
Pet's info: Dog | Cavalier King Charles Spaniel | Male | neutered | 8 years and 7 months old | 23 lbs
Dog was prescribed Novox 25mg once a day for limping.This was on 1/9. On 1/12, work up & needed to go outside, where he was eating grass, bamboo, & other green plants to make himself vomit. Took him to the vet, who gave him a shot of Cerenia, & since diarrhea, one Flagyl 250 mg. Since then, about 9:00am, won't touch food & haven't seen him drink. Seems uncomfortable & if let out tries to eat grass.
1 Answer
Published on January 12th, 2019
It is possible that he is feeling nauseous from the Flagyl....that daily dose for a 23 lb dog is often split into two daily doses. It is also possible that he may have a stomach upset/or even an ulcer from the Novox, especially if it was given on an empty stomach. NSAIDs do have the potential of causing vomiting and diarrhea in sensitive dogs. A bland diet of boiled rice and chicken for 3-5 days plus a stomach coating medication called sucralfate daily for a few days +/- an antacid such as famotidine + subcutaneous fluids and bloodwork could be appropriate next steps. I’d recommend returning to your veterinarian or seeking a new vet if you are more comfortable with a new vet. Hopefully the lameness is no longer an issue and with relatively conservative management the vomiting and diarrhea can be resolved as well. Good luck!
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