Last week I took pepto Friday, Sat and Sunday. Sunday morning my bowel movement was black and I read that was a side effect of pepto. I just had another bowel movement this morning and its still black. Should it still be in my system or is it blood?
Well, one of the main reasons people take Pepto is to stop diarrhea, so taking a lot of it can certainly "back you up" a bit, especially if you're really sensitive to it.
To help with your constipation,try and have a few high-fiber foods, like bran, fruits and vegetables, etc. Make sure you drink enough water, though, because fiber without enough water can actually make constipation worse.