Which antibiotic is commonly used to treat traveler's diarrhea?

Ciprofloxacin is commonly used to treat traveler's diarrhea, particularly when the condition is caused by bacterial pathogens such as enterotoxigenic Escherichia coli (ETEC) or other similar bacteria. This fluoroquinolone antibiotic has a broad spectrum of activity against the gram-negative bacteria typically responsible for this type of diarrhea and is effective in reducing the duration and severity of symptoms.

In the context of traveler's diarrhea, the choice of antibiotic may also depend on factors like local antibiotic resistance patterns, the severity of the illness, and the specific pathogens involved. Ciprofloxacin is often used because of its efficacy and generally favorable safety profile for short-term use. While other antibiotics, such as azithromycin, may also be used for specific cases, particularly in areas with known resistance to fluoroquinolones, ciprofloxacin remains a first-line option in many clinical guidelines for treating traveler's diarrhea.