Antibiotic | Dose | Duration* |
Levofloxacin | 500 mg orally once daily | 3 days |
Ciprofloxacin | 500 mg orally twice daily or 750 mg orally once daily | 3 days |
Azithromycin | 500 mg orally once daily | 3 days |
Cefixime¶ | 200 mg orally twice daily | 5 days |
Ceftriaxone | 1 to 2 g intravenously once daily | 5 days |
Trimethoprim-sulfamethoxazole (co-trimoxazole) | 160/800 mg (one double-strength tablet) orally twice daily | 5 days |
Ampicillin | 500 mg orally every 6 hours | 5 days |
* For patients with infection due to Shigella dysenteriae type 1 or with HIV coinfection, we treat for 5 to 7 days; in the rare event of bacteremia, we treat for 14 days.
¶ Treatment failures have been reported for cefixime; clinical follow-up is essential.