[Anonymous]

I would stop all gobbledygook supplements and pumpkin stuff, maybe this is what is making him nauseous.
What does your vet who is prescribing the cerenia and okaying the prn pepcid recommend?
If the GI upset has been going on for a while, I would seek out a specialist to get an exact diagnosis and treatment options.
Less is better, keep the diet simple. A healthy dog can tolerate a variety of foods.
Just my opinion.