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A 18-year-old member asked:

antibibiotic cause fatigue?

3 doctor answers5 doctors weighed in
Dr. Joseph Roosth
Internal Medicine 35 years experience
Maybe: First, almost any infection from a simple sore throat to a life threatening pneumonia will make you very tired. So it might not be the antibiotic at all. But out of curiousity i reviewed a few commonly used antibiotics and the following all list fatigue as a side effect. Cehphalexin, azithromycin, bactrim, (sulfamethoxazole and trimethoprim) levofloxacin, and others. So simply stated yes, antibiotics can cause fatigue.
Dr. Vasudha Kaushik
Family Medicine 16 years experience
Yes: They can because they kill a lot of good probiotic bacteria in our body. Decrease in the probiotic bacteria causes inflammation in the body that can cause fatigue. Get started on a good probiotic like Megafood Megaflora plus 2-3 caps/day. Get sunshine for at least 30-45 min/day (no sunscreen but protective clothing is OK to use) at noon time.
Dr. Dean Giannone
Internal Medicine 25 years experience
Fatigue.: Antibiotics can always cause fatigue as a side effect. Or the infection for which the antibiotic is being used can cause fatigue. If the fatigue persists, revisit your doctor for another evaluation.

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Last updated Nov 26, 2016

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