Patent ductus arteriosus:
<48 hour old: start 0.2mg/kg IV x 1, then 0.1mg/kg q12-24h x 2
2-7 days old: Start 0.2mg/kg IV x 1, then 0.2mg/kg q12-24h x 2
> 7 days old: Start 0.2mg/kg IV x 1, then 0.25mg/kg q12-24h x 2
Rheumatoid Arthritis
1-2mg/kg/day PO divided BID-QID, max 4mg/kg/day up to 150-200mg/day
Indomethacin
Epoprostenol 
Oxymetazoline
Ketoprofen
Prostaglandin E1
Celecoxib
Prednisolone
Colchicine