Diarrhoea with Pembrolizumab.

Because of the way it works, Pembrolizumab can lead to the immune system attacking healthy cells. Colitis is one of the more common complications. When this happens, they have to look at both the severity of the immunotherapy related adverse event, and the speed with which it recovers, to decide whether it’s safe to restart treatment. Unfortunately if you get one of these issues you can get others. (I had to stop pembro thanks to kidney, thyroid and lung damage).

Thanks for the reply, this is helpful.