I have had UC for the last 20 years and until recently it was kept in remission with Mesalamine (orally) and occasionally with Mesalamine enemas. At the end of last year my GI switched me to Entyvio as it seemed that Mesalamine was no longer keeping it in remission. After about 3 months of being on Entyvio I started to experience hair loss. I have probably lost close to half of my hair at this point. I have had my thyroid checked and it is fine. I never had any hair loss in the 20 years that I was on Mesalamine, even during the few flares that I had. I am quite certain that the Entyvio is what is causing my hair loss. Hair loss was not seen in clinical trials of Entyvio and it is very difficult to find any information online about this. Has anyone on Entyvio had this same experience? And if so, does it stop or is there something that can be done to counteract the hair loss?