Everyone is different, but Zenpep is much better for me. I had tried Creon a couple of times in the past so we didn't even bother with it when I had to switch away from Ultrase. We knew that it left me gassy and miserable so it wasn't really an option. Like Jenny it took me a little while for my body to adjust to the Zenpep (a couple months in my case) but now it works great.
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<br />If it has been several months and you are still having problems, I would try something else.
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<br />If it has been several months and you are still having problems, I would try something else.