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STDs  (Expert Forum)
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Zithromax effectivness after food
Answered by
Edward W Hook, MD - HIV Prevention, stds
Welcome to the STD Forum, which is intended only for questions and support pertaining to sexually transmitted diseases other than HIV/AIDS, including chlamydia, gonorrhea, syphilis, human papillomavirus, genital warts, trichomonas, other vaginal infections, nongonoccal urethritis (NGU), cervicitis, molluscum contagiosum, chancroid, and pelvic inflammatory disease (PID). All questions will be answered by H. Hunter Handsfield, M.D. or Edward W Hook, MD.

Zithromax effectivness after food

by redford99, Mar 14, 2009 04:14PM
I was perscribed 2 grams of Zithromax for a positive Gonorrhea test.   I had a small sandwich and 20 minutes later took my 4x500mg tablets.  Of course, then I read I was to wait 2 hours until eating a meal.   About three hours after taking the Zithromax I had diarrhea.  

My question....   Could I have comprimised the effectivness of the Zithromax by taking it so close to a meal?  Also did I pass these medication when I had the diarrhea?  

Not a pleasant topic, but thanks in advance for any information.

by Edward W Hook, MD, Mar 14, 2009 04:25PM
The effectiveness of azithromycin is not changed by eating, either shortly before or after taking the medication.  This has been studied by the manufacturer and the amount of drug that gets into your body is the same with or wothout food.  

BTW,the dairrhea you experienced is a well described and relatively common side effect of the asithromycin as well.  It will not have a negative effect on your treatment either,  

Your gonorrhea has been well treated.  Take care.  EWH
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