My dog seemed to be very sensitive too. Sometimes I would give him like 3 Dr S #2, and that would help. I also try different stuff...I experimented with different veggies to mix in.. I have found that carrots, and broccolli works great for stiffening the stool and slowing it down. I chop it up and put it in the food processor, and chop it. I use raw carrots, and frozen broccoli. Then I mix a small hand full in the food and works good.