To The Makers of Pepto Bismol

I really think Pepto should come with a free phone app that sends a message, oh, say 36 hours after you take a dose of the stuff. The message would say something like:

YOU TOOK PEPTO BISMOL 36 HOURS AGO. THAT'S WHY YOUR POOP IS BLACK.

NO, YOU ARE NOT GOING TO DIE.

Save a lot of people a lot of anxiety.