Biological treatments in pediatric IBD In Sweden, there are an estimated 1 500 pediatric IBD patients. We sent out a survey regarding the use of biological treatments in pediatric IBD to pediatric gastroenterologists in Sweden. Of 1 098 recorded IBD patients, 17% had ongoing treatment with biological drugs. The drugs used were almost exclusively infliximab and adalimumab, i.e. anti-TNF-alpha. Use of biologics varied among responders. Anaphylactic reactions and other types of infusion reactions were the most frequent side effects.