Linda and DVCDon~
Thank you both for your replies. Fortunately, by the time my husband got home from work last night, he was feeling much better.
Unfortunately, he's now on a once-a-year colonoscopy schedule because of the polyps. I don't have a history of polyps, and I'm trying to convince our GI doctor to let me wait ten years until my next one, instead of her recommended five. That Phospho-soda is the pits!
Thanks again.