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A member asked:
Can antibiotics make parasites worse?
A doctor has provided 1 answer
Both ways.: Some parasites compete with bowel bacteria for food, and killing bacteria would make more available for them. Could be the opposite: metronidazole, for example, is an antibiotic that also kills parasites; and Bactrim (sulfamethoxazole and trimethoprim) kills bacteria in lice that lice need to survive.
Answered 6/24/2014
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