My 13-year-old male cat started having stomach issues in October -- vomiting and diarrhea all day. He went from 17 lbs. to about 6lbs. Two expensive visits to the vet could not identify his problem -- was it food allergies? a parasite? cancer? By January, there was no letup and I was fully preparing for him to pass away at any time. I then tried this HomeoPet product and, seriously, within 24 hours he was on the mend. It's the beginning of March now and he is eating again without vomiting, gaining weight, and pretty much back to being his old self again. I attribute his better health solely to HomeoPet!