Thanks for all the great recommendations. Heathen, I take the probiotics pb4 recommends - primodophilus rueteri or something like that. There's another form of this antibiotic called "pearls" which don't need refrigeration. I don't think they're as good, but I'll bring some of those with me. Fitzy - that's a great idea to just buy some at my destination. I'm going to Vegas, Sedona and Santa Fe. i'm sure I can find some there. I may also try to bring some in a bag with a little ice (less than three ounces). If it's ice (solid), then arguably the 3 oz of liquid max shouldn't apply.
50 y/o F. CD dx'd Aug 05. Initially on Pentasa, then Imuran 125 mg. Started Humira (very reluctantly) on 10/24/07. Ileocolectomy 4/08.