Short answer is no. There are other forms of 5-ASA drugs, but it sounds like you are not interested in them. VSL#3 and tumeric are “natural” options, but they work in a different way and may or may not be helpful for you. Most people tolerate them well, but the VSL#3 might give you a fair amount of gas and cramps at first.
Give it a try and see how it goes. The only thing I want to stress is that inadequately treated pouchitis or cuffitis leads to complications too, so keep that in mind.
Jan