Which antibiotic is listed as a treatment for mild C. difficile infection?

Which antibiotic is listed as a treatment for mild C. difficile infection?

• A. Vancomycin IV
• B. Amoxicillin PO
• C. Ciprofloxacin PO
• D. Metronidazole PO

Answer: (D)

For mild C. difficile infection, the drug choice is metronidazole taken by mouth because it effectively reaches the colon to combat C. difficile and has been listed as a first-line option for milder cases in traditional guidelines. The oral route allows the drug to act locally in the gut where the infection resides, which is crucial for CDI treatment. Intravenous vancomycin won’t deliver enough drug to the colon, so it’s not suitable for CDI. Amoxicillin taken by mouth and ciprofloxacin taken by mouth aren’t effective against C. difficile and can worsen dysbiosis, making them inappropriate choices.

For mild C. difficile infection, the drug choice is metronidazole taken by mouth because it effectively reaches the colon to combat C. difficile and has been listed as a first-line option for milder cases in traditional guidelines. The oral route allows the drug to act locally in the gut where the infection resides, which is crucial for CDI treatment. Intravenous vancomycin won’t deliver enough drug to the colon, so it’s not suitable for CDI. Amoxicillin taken by mouth and ciprofloxacin taken by mouth aren’t effective against C. difficile and can worsen dysbiosis, making them inappropriate choices.