Doctor Answers 1
I use Phentermine for weight loss in my offices. I have had a few patients complain of being backed up because of the Phentermine, but this is the first time I have heard that it may be causing diarrhea. However that being said, if you are on a regimen of other supplements as well may I suggest that you stop one at a time for 2 to 3 days and if your still having symptoms restart the supplement and discontinue another one. Or it may be something different that you are eating.
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