I've used it and prefer it over Creon...I honestly couldn't tell you why b/c I think they both have done what they need to do, but I started out on Zenpep once Ultrase was gone. I guess I favor it b/c of that? I've never had any problems with it and would recommend it to anybody.
Proxy - Zenpep is an enzyme like Ultrase, Creon, Pancrease, etc. <img src="i/expressions/face-icon-small-smile.gif" border="0">