[pugmomsandy]

He can have psyllium with each meal. Start with 1/8 teaspoon per meal and see how he does and go from there. If the pumpkin isn’t helping him for diarrhea (BTW pumpkin is for both diarrhea and constipation), then I don’t see why you still can’t give it to him just because he likes the taste. For a 20 lb dog, I would normally use a tablespoon or two of pumpkin.