From: Ciprofloxacin for contacts of cases of meningococcal meningitis as an epidemic response: study protocol for a cluster-randomized trial
Age
Dose (mg)
Formulation
≥12 years
500
1 tablet
5–11 years
250
1–4 years
125
½ tablet (250 mg tablet)
3–11 months
100
2 ml oral suspension (250 mg/5 ml)
<3 months
75
1.5 ml oral suspension (250 mg/5 ml)