I have read papers on Pegasys that there's a risk of Colitis with its use. The day of my 8th injection I had serious pain in my abdomen and passed a small amount of blood the following day. I'm still in some pain several days later but feeling better. My doctor told me to discontinue use for a week and then resume at the minimal 45mcg, which I'm apprehensive about despite how much I want to say on it.
Looking on here for posts from anyone who's experienced this I found very little tying Peg to Colitis, but a fair amount of people tying their MPN itself to Colitis and are NOT taking Peg.
Pondering on this it occurred to me that I've had abdominal issues for years, including a serious case of diverticulitis necessitating the removal of part of my large intestine. But that was over 5 years ago and I have not had any issues since other than intermittent abdominal discomfort and bloating.
I'd like to hear from anyone who has experienced serious or chronic GI issues and think it could be related to their MPN or Pegasys use, and if they have received professional advice on a course of action. Thank you in advance!