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Diarrhea Caused by Antibiotics

About 1 in 5 people who take antibiotics develops diarrhea. Diarrhea may develop while taking the antibiotic or shortly after finishing the medicine. This diarrhea will usually go away completely several days after the antibiotic is finished.

More than half of those who get diarrhea from taking an antibiotic have a mild case that may clear up without treatment.

People who take antibiotics, including those who have been recently hospitalized and received intravenous (IV) antibiotics, may develop diarrhea caused by Clostridium difficile bacteria. C. difficile can cause severe diarrhea, and the infection and diarrhea may return after antibiotic treatment. Diarrhea caused by this bacterium usually requires medical treatment.

If diarrhea develops while taking an antibiotic, contact the doctor to determine whether the medicine should be continued or another medicine substituted. Do not stop the antibiotic abruptly.

By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Current as of February 21, 2012

WebMD Medical Reference from Healthwise

Last Updated: February 21, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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