My Shiba Inu, had a horrible reaction to a different heart worm pill. For the past two weeks he has had pitiful diarrhea numerous times a day. My vet exchanged his heart worm pills. Sold us ID dog food. Prescribed rx clay and rx biotics. Today out of desperation, I have started him on a white rice, boiled chicken, pumpkin diet. I add two scoops of both the biotics and clay. Any suggestions to help him. Every time, I start to add a tiny bit of his kibble, Innova, back to his diet the diarrhea starts again. He has lost over a pound, and is visibly uncomfortable.