I had the same concerns about capsules getting stuck. It has happened a few times which I found out by an X-ray before having an mri for unrelated issues. Once, my dr had me take a bowel prep which resolved the problem but no one wants to go through that f it isn’t absolutely necessary. Most recently I took Phillip’s milk of magnesia when a X-ray showed 4 trapped capsules. Two or 3 nights on that resolved my problem. I have been on vibrant ever since it was approved by the FDA. With a few glitches, it has worked very well. I never thought I would have thought I would have normal bowel movements.
Adrienne