Replies To: Generic Macrobid side effects

Verwon says

Sat, 23 Feb 2008 11:41:33 -0800

No, the difference is not in the Bioavailability, the 20% difference is allowed flat-out in the active ingredient!!!! In addition they do only have to be bioequivelent so they substance may be completely different from what you were previously taking. They only have to show that it works the same in the body as the name brand did, it does NOT have to be identical to the name brand.

So you may be getting an entirely different substance that your body is not used to or you may be getting more or less of a dose than you were previously taking.

carol deckel says

Wed, 20 Feb 2008 05:56:27 -0800

I was prescribed generic Macrobid the other day for a UTI, and I am experiencing side effects such as nausea, diarrhea and agitation, which never happened to me on the brand name Macrobid. I am calling my doctor about this today. I read that generic meds. can be 20% different in bioavailability. They are not the same as the brand name drug. I will stop this med. and never take it again. I would rather have the UTI.

Joann Podhorniak says

Sun, 5 Feb 2006 11:50:22 -0800

I was put on Generic Macrobid and I also have had discomfort in my chest. I even call the pharmacy to see if they had given me the wrong medication.