Zithromax Z-Pak - How long after you finish taking the medication does it keep working?
Question posted by Sue R Jones on 7 Sep 2009
Last updated on 18 January 2017 by Mzks
It keeps working about 10-14 days
Hi, I am a CMA and have been in the medical field for 7 years. A z-pack you take for 5 days and it stays in your system for 5 days after you finish it. In total the medicine will be in your body for 10 days. :-)
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