I've been taking 200 mg Doxy every day w/ 250 mg of Azithromycin MWF. Last time I saw my doctor he said that I will have to stop taking Doxy and Azithromycin while doing the Flagyl pulses because it was going to be too much for my body to handle. I thought we were supposed to continue taking all the meds while doing the pulses, am I wrong? Also, so far I've had no major reactions to this combo. My elbow seems to be less swollen though, and an infection that I had on my toe went away when I introduced Azithromycin. I guess something is working.