Macrolides

Antimicrobial Paediatric Dose Cost ($)/Day
erythromycin 40mg/kg/d PO div qid 2.19
  40mg/kg/d IV div q6h 25.60
azithromycin 10mg/kg PO first day then 1.32 (5mg/kg PO)
  5mg/kg PO daily x 4 days  
  10mg/kg IV first day then 7.86 (10mg/kg IV)
  5 or 10mg/kg IV daily  
clarithromycin 15mg/kg/d PO div bid 2.40