I used to think it was ok as well as I've read countless times that it's "normal". However, I no longer believe that's always the case. Asacol is formulated for release at pH ≥ 7.0. The thing is, luminal pH varies from person to person. And studies have found that IBD can alter pH, sometimes making it lower. For example,
this paper mentions Asacol may not work as well because of this. The average pH values of the intestinal tract:
Stomach: 1-5
Duodenum: 6
Jejunum: 6
Ileum: 6-7
Terminal Ileum: 7.4
Cecum: 5.7
Large Intestine: 6.5
Rectum: 6.8
(
Source)
The thing is, in that first paper, here are some of the ranges:
Gastrointestinal luminal pH data recorded by RTC in normal volunteers are shown in table 1. Luminal pH in the proximal small bowel ranges from 5.5 to 7.0 and gradually rises to 6.5–7.5 in the distal ileum. In almost every recording published there has been a fall in luminal pH from the terminal ileum to the caecum (range 5.5–7.5); pH then rises in the left colon and rectum to 6.1–7.5.
So if you are one of those people with a pH that never hits 7, you're going to be passing the whole pill. I know it's may seem gross, but if you see the whole pill, fish it out and see if the medication is still in there.
ramittman, I hope you don't mind but I added info about passing the whole pill to the thread title so others can search for this if need be.
I read on another thread that what seems to be the Asacol pill may just be the outside wrapper and that the med could have come out as it should. My son was on Asacol for ileal Crohn's but then a second doctor told us it doesn't work for that...
It depends on the person's pH. Since Mesalamine (the active ingredient of Asacol) is topical, if your son's pH allowed for early release in the intestines, then it may have helped
a little. If his pH is low, then it was worthless. But even if the pH was allowing release in the ileum, crohn's affects the entire width of the intestine so topical treatments like Mesalamine don't do much whereas Ulcerative Colitis affects only the mucosa so it does work. There's a reason not a single formulation of Mesalamine is approved for the treatment of Crohn's disease. If doctors want to use it off label in conjunction with other treatments, fine. But it drives me crazy when people show up here and it's the only treatment they're on. And it happens a LOT.