title: Dosage / Interval - Neonatal Intensive Care Drug Manual
text: Pertussis – post-exposure prophylaxis and treatment1 (azithromycin is recommended. Use erythromycin only if azithromycin is not available).
  10 mg/kg/dose PO 6-hourly for 5 to 14 days; 14 days preferred to avoid risk of relapse.
  Chlamydia infection (conjunctivitis, pneumonia)
  12.5 mg/kg/dose PO 6-hourly for 14 days.2
  Non-chlamydial, susceptible bacterial infection in penicillin-allergic infants3
  Weight <1 kg:
  -Postnatal age ≤14 days: 10 mg/kg/dose 12-hourly
  -Postnatal age >14 days: 10 mg/kg/dose 8-hourly
  Weight ≥1 kg:
  -Postnatal age ≤7 days: 10 mg/kg/dose 12-hourly
  -Postnatal age >7 days: 10 mg/kg/dose 8-hourly
  Prokinetic dose for gastrointestinal dysmotility (inconsistent evidence for its efficacy and safety and routine use not recommended)
  Low-dose regimens: 2.5 mg/kg/dose 6-hourly up to 10 days.10 or 5 mg/kg/dose 8-hourly (7–14 days)11
  High dose regimens: Doses up to 10–12.5 mg/kg/dose 6-hourly for 7–14 days have been used.12-14
  Post-op intestinal atresia: 3 mg/kg/dose 6-hourly19
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