Does Guaifenesin worsen IBS?

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Veteran Member

Date Joined Mar 2005
Total Posts : 1512
   Posted 3/4/2006 8:53 PM (GMT -7)   
Hi all,
   I've had a recent flare-up of my IBS recently.  My diarrhea is worse, as are a few other IBS symptoms.  I've been on Mucinex (guaifenesin) 1,800mg a day for a blocked eustachian tube for about a month and I'm starting to wonder if it's causing this flare-up.   Has anyone ever been on guaifenesin and has it affected your IBS?  Thanks.

Veteran Member

Date Joined Jan 2004
Total Posts : 4151
   Posted 3/4/2006 11:14 PM (GMT -7)   
Hi Cathy,
I took Mucinex DM for a couple of days when I was sick and now that you mention it had more BMs with urgency a couple of days later. I'm not sure if it was the Mucinex or because I had the flu and my body was out of whack but I'd be interested to hear if others have had this too.
Hugs, Des
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Veteran Member

Date Joined Mar 2005
Total Posts : 1512
   Posted 3/5/2006 7:56 AM (GMT -7)   
Hi Des,

I'm thinking that since guaifenesin thins secretions (of all types), that maybe it's real possible that it would cause some diarrhea. I'm hoping this at least! .........and hopefully when I stop taking it, things will get better again! Thanks!
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