worked well enough, ask your doctor about entyvio, the only biologic developed and approved just for uc and crohn's. entyvio works by focusing right in the gi-tract to help control damaging inflammation and is clinically proven to begin helping many patients achieve both symptom relief as well as remission. infusion and serious allergic reactions can happen during or after treatment. entyvio may increase risk of infection, which can be serious. while not reported with entyvio, pml, a rare, serious brain infection caused by a virus may be possible. tell your doctor if you have an infection, experience frequent infections, or have flu-like symoms,ores. liver problems can occur with entyvio. if your uc or crohn's medication isn't woing for you, ask your gastroenterologist about entyvio. entyvio. relief and remission within reach.