EPI takes a while to get used to and doses etc figured out. I suggest you keep a journal of diet and dose of enzymes initially. A low fat diet helps a lot. Amazon has pancreatic enzymes that are almost exactly the same as the Rx but much cheaper. The lipase dose is what counts. Rx = 40000 units
Vital Care OTC=36500 units
A negligible difference. Be sure to read the fine print on label as there are different doses. I take one capsule with lunch and dinner but know others take more. It’s trial and error at first. Good luck getting your symptoms under control!