Nintedanib-Induced Colitis Can Mimic Inflammatory Bowel Disease.

Nintedanib is a medication that has been increasingly used for treatment of idiopathic and progressive pulmonary fibrosis. In this case series, we describe 3 patients with colitis symptoms associated with nintedanib use. Nintedanib discontinuation resulted in symptomatic resolution in all patients. Budesonide decreased symptoms in 1 patient. Clinicians should be vigilant in taking a thorough medication history and include nintedanib as a cause for gastrointestinal symptoms including colitis.