Miniature greyhound, upset stomach... HELP.
We have a miniature greyhound that has a constant stomach problem, she will be fine for several days then all of a sudden she won't eat because her stomach is upset, sometimes she vomits, no diarrhea. We have taken her to the vet several times and he gives her a shot of "Pepcid" and then she is fine. He instructed us to give her pepcid in her food. We cut a pepcid in half and crush it up and put it in her food, this seems to help, but then a few days will go by and she's back to an upset stomach. It's a chronic thing and I would like to know what I can do to help her. She is 4 years old.
Thank you in advance.