Tablet 1 | Tablet 2 | Tablet 3 | Tablet 4 |
---|---|---|---|
Azithromycin 800-mg tablet | Azithromycin 400-mg tablet | Azithromycin 200-mg tablet | Azithromycin 100-mg tablet |
Placebo tablet 1 | Placebo tablet 2 | Placebo tablet 3 | Placebo tablet 4 |
Co-trimoxazole 1200-mg tablet | Co-trimoxazole 600-mg tablet | Co-trimoxazole 300-mg tablet | Co-trimoxazole 150-mg tablet |