At Tornado6 were did you read that "The cancer risk continues, but we don't have numbers for 40 or 60 years out, because the drugs haven't been approved for that long."
I read a large population based french study of people on these kinds of drugs. People that never had taken them had a normal risk, people that take them have a tiny increased risk and the people that used them in the past and discounted using them, their risk returned to normal.
Also a big study comparing all studies the authors were inclined to think that the risk would go away once stopped taking them.
Here are some quotes a study with 19,486 people both CD and UC.
"Of the 23 patients with LD, 22 had non-Hodgkin's lymphoma and one had Hodgkin's lymphoma. Incidence rates of LD were 0.90 per 1,000 patient-years in those receiving thiopurines, 0.20 per 1,000 patient-years in those who'd discontinued the drugs, and 0.26 per 1,000 patient-years in those who'd never taken thiopurines."
Post Edited (Jessicaaa) : 6/10/2013 7:45:40 AM (GMT-6)