While I don't have the IBS actual dx but experience symptoms very similar to IBS (existing w/o my lower colon, removed due to cancer), I've noticed a marked improvement in my symptoms, this probiotic seems to equalize everything inside for me, and quiet my gut from the rumbling I sometimes get.
Renew Life, Ultimate Flora, Critical Colon, 80 Billion Count. Purchased at a local health food store, found in the chilled section near flaxseed oils and yogurt.
I read on the UC forum here that it's best to take this probiotic on a completely empty stomach at bedtime. That seems to work for my schedule.
Post Edited (Marsky) : 9/3/2011 10:11:03 PM (GMT-6)