A 45-year-old male asked:
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can you get a false positive on a chlamydia test while being on biaxin (clarithromycin) antibiotics? tk u dr!

1 doctor answer
Dr. Hunter Handsfield
53 years experience Infectious Disease
Nope: Clarithromycin (Biaxin®) cannot make a chlamydia test falsely positive. If you have a positive test while taking the drug, it means you have (or had) chlamydia. After cure of chlamydia with antibiotics, it takes 1-2 weeks for the test to become negative. However, clarithro has not been studied much against chlamydia. For more reliable treatment, ask your doc about azithromycin or doxycycline.
Answered on Jul 20, 2015
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