If diarrhea continues for over two days while taking an OTC antidiarrheal, stop taking the product and contact a healthcare ...

The most common OTC antidiarrheal medications are bismuth subsalicylate and loperamide. Bismuth subsalicylate's main side effect is discoloration of feces and the tongue. This side effect may mask ...

It may include over-the-counter (OTC) drugs like Dramamine (dimenhydrinate ... Bismuth subsalicylate, sold under the brand names Pepto-Bismol and Kaopectate, is an antacid and antidiarrheal drug that ...