I had someone ask me this the other day and simply didn't know the answer so I thought some of you might. This person has to take a standard drug test for a new job and is concerned that the t-3 and/or femara may give a false positive for something else. While obviously they won't be testing specifically for these two drugs I am not sure if they give a similar read for any other drug. Has anyone taken a standard drug test while on t-3 or femara and how were the results?