My husband's GI believes that Remicade is associated with Cancer usually when it is taken with other immuno-suppressive drugs such as Imuran, 6-mp or MTX. I also read an article that the CCFA published that explains the cancer risk on Remicade/Humira:
www.ccfa.org/about/news/cancerrisksexplainedThe most relevant part is:
"Overall, the study suggests that the increased risk of cancer (lymphoma, skin, gastrointestinal, breast and lung) or serious infection may be three-fold and two-fold, respectively. The risk appears to be mainly in patients receiving high dose treatment (more than 6 mg/kg every 8 weeks; or adalimumab, 40 mg every other week). Curiously, the increased risk of cancer occurred early, and there was not a further increase of cancer with longer times."
My husband's GI believes that Remicade in terms of cancer, is safer than drugs such as MTX, especially for long term treatment because of this study done by the Mayo Clinic.
Remicade is probably the best drug out there for fistulas, and hopefully you won't have any side effects from it. The only side effects that Remicade has had on my husband so far (he's been on it 2 years), is a flu-like feeling with joint pain for a couple of days. He is given benedryl and solumedrol to deal with this.
I hope you get Remicade soon, and recover from this quickly, and go on with your life normally. Sending you lots of good wishes,
PV