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I am very sorry to hear Poody is not feeling well. A combination of vomiting and diarrhea is worrisome. Many dogs can develop a severe gastritis and even pancreatitis when eating other oily, buttery, spicy, fatty types of foods.
I would withhold food for at least 8 hours from the most recent vomiting episode. I would also strongly consider a vet visit today, because they can give far better gastrointestinal medications to get Poody back on track faster.
How much does Poody weigh?