Immodium worked very well for me. I also took a couple of glasses a day of psyllium powder (metamucil but I used the Equate brand). It may seem counter intuitive to use a laxative when you are having no such problem. However, the fiber keeps the stool in somewhat solid form and you will not get the rectal burning from the acid in the stool. I have heard from others who did the same with good results. If you do not have the desired result just stop taking the powder.
Good luck with your treatment and hope you have excellent results and few side effects.
Diagnosed 04/10/08 Age 58 at the time
Gleason 4 + 3
DRE palpable tumor on left side
100% of 12 cores positive for PCa range 35% to 85%
Bone scan clear and chest x ray clear
CT scan shows potential lymph node involvement in pelvic region
Started Casodex on May 2 and stopped on June 1, 2008
Lupron injection on May 15 and every four months for next two years
Started IMRT/IGRT on July 10, 2008. 45 treatments scheduled
First 25 to be full pelvic for a total dose of 45 Gray to lymph nodes.
Last 20 to prostate only. Total dose to prostate 81 Gray.
Completed IMRT/IGRT 09/11/08.
PSA 02/08 21.5 at diagnosis
PSA 07/08 .82 after 8 wks of hormones
PSA 10/08 .642 one month after completion of IMRT, 6 months hormone
PSA 03/09 .38 six months post radiation and nine months into hormones