I was not seeing any signs of black stools before taking the medicine and I am not taking any other medications. I have had a chest cold almost a week.
This is not a usual side effect for Mucinex. You need to make an appt. to see your primary care doc. There is a test they can do to see if there is blood in the stools. Black stools can be a sign of a bleed somewhere in the digestive tract. Kaismama is right that iron can give you dark looking stools and so can Pepto-Bismol. If there is bleeding somewhere in the digestive tract, it is nothing to mess with so see your doc as soon as possible.
- Mucinex Information for Consumers
- Mucinex Information for Healthcare Professionals (includes dosage details)
- Side Effects of Mucinex (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Posted 22 Mar 2011 • 2 answers
Posted 19 Feb 2012 • 2 answers
Posted 23 Apr 2012 • 1 answer
Posted 27 Dec 2014 • 1 answer
Posted 4 Sep 2015 • 2 answers