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Infection

Gastroenteritis Possible therapeutic alternatives
Gastroenteritis: Traveler's diarrhea Common pathogens
Ciprofloxacin 500mg po bid or Levofloxacin 500mg po qd x 3 days.
Bactrim DS po bid x 3 to 5 days. [Cyclospora, Shigella, Vibrio cholerae]
Azithromycin 500 mg once daily X 3 days
Gastroenteritis: severe diarrhea Common pathogens
Ciprofloxacin 500mg po bid OR Levofloxacin 500mg po qd x 3 to 5 days.  OR
Bactrim DS po  q12h. 
Pathogen Specific
Clostridium difficile: 
Metronidazole 500mg po tid x 10-14 days or  Vancomycin 125mg po qid x 10-14 days. 
Campylobacter:
Ciprofloxacin 500mg po q12h or 
Azithromycin
500mg qd x 3d.
Giardia:
tinidazole 2gm PO x 1 dose or nitazoxanide 500mg PO bid x 3 days
Shigella:
Ciprofloxacin 500mg orally bid x 3 days or Bactrim DS (1 tablet) orally bid x 3 days or
Azithromycin
500mg orally x 1 day then 250mg orally once-daily x 4 days

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References - Infectious Disease Section

Infectious Disease References

Disclaimer

The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgement. Neither GlobalRPh Inc. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material.
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