Pentasa and Asacol are formulated to be released lower in the intestinal tract. The white beads are what contain the medication. The medication is released from the bead leaving the outer shell. That is what you are most likely seeing.
That said, it is possible to pass medications both time released and "regular" without then delivering the medication. I have passed two different medications intact. When I was having severe diarrhea, over 20 times, a day, I also experienced loss of bowel control. I once found my blood pressure medication in my underwear about
6 hours after I took it,
I used to take a time released asthma medication. I often would see it in my stool. The doctor assured me that I was seeing the shell of the medication. However, my asthma was getting worse so I decided to investigate. I fished out the pill the next time I saw it and broke it
open. It contained all the medication. This instituted an investigation by the pharmaceutical manufacturer. They discovered that my GERD pill, Prevacid, was inhibiting my acid production which the medication needed to start the process to dissolve.
Moderator Crohn's Disease & Osteoarthritis Forums
CD, Ankylosing Spondylitis, lupus, small fiber peripheral neuropathy, avascular necrosis, peripheral artery disease, degenerative disc disease, asthma, severe allergy and a host of other medical problems.