ENTYVIO is a biologic for adults with moderate to severe Crohn's disease or ulcerative colitis. See Safety and Prescribing Information., Explore common questions regarding the ENTYVIO Pen and infusion, side effects, pregnancy info, and more. See Safety and Prescribing Information., Discover ENTYVIO resources for those who are currently on or starting their treatment journey, as well as those looking to explore patient support programs., Learn how ENTYVIO, a biologic treatment, can reduce Crohn’s disease and ulcerative colitis inflammation. See Safety and Prescribing Information., See the impact of ENTYVIO (vedolizumab) in reducing symptoms and achieving remission for Crohn’s disease. See Safety and Prescribing Information., Información importante sobre seguridad de ENTYVIO® (vedolizumab) (continuación) Los efectos secundarios más comunes de ENTYVIO incluyen resfriado común, dolor de cabeza, dolor en las articulaciones, náuseas, fiebre, infecciones de nariz.