A 21-year-old female asked:
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if gut flora is killed by antibiotics, do you have to take probiotics forever or just until balance is back? can gut flora thrive again on their own?

1 doctor answer
Dr. Charles Cattano
38 years experience Gastroenterology
Post-antibx flora: Many antibiotics are non-specific as to what bacteria they kill. When your normal gut flora is depleted by antibiotics you may be at risk for opportunistic pathogens. A very common one is clostridium difficile (C.Diff). Probiotics will replete your flora with desirable organisms, but long term use is not required--once probiotics are discontinued, the flora which are unique to you will repopulate.
Answered on Feb 22, 2020

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