u/user6142

I was diagnosed with Mgen, but my urologist only gave me 1,500mg of Azithromycin (no Doxycycline). Because of this, I went to a different doctor who wants to run a Macrolide resistance test first and put me on 7 days course of Doxycycline.
The problem is that i finished the Azithromycin from the first doctor on May 5th and this new doctor wants the urine sample tomorrow, May 13th.
Is 8 days after the last pill long enough to get an accurate result of the resistance? I’m worried the medicine is still too active in my system and will cause a false negative or mess up the resistance test. Should I wait longer? I just want to start taking Doxycycline as soon as possible and i don‘t want to wait 3 weeks..

I tested positive for MGEN, and my urologist prescribed me Azithromycin: two 500mg pills on Day 1, and one 500mg pill on Day 2. I took the first two pills on an empty stomach, and after approximately three hours, I had diarrhea. On Day 2, I had no problems with the last pill. My question is: Will the diarrhea on the first day have any effect on the medication?