I was taking some diphenhydramine yesterday to help me sleep. This night when I woke up my stools looked fine (formed and bright brown) and about
an hour ago it changed to black and became softer. I just now had another bm and it looked black and it was d. Can the sleep aid be the cause? Is it harmful? I read the side effects but I couldn't see anything about
stools or UC.
Edit: I don't plan to stay on sleep aid for a longer time. I just switched to night shift and needed sleep badly