. 2011 Jan;9(1):4–9. doi: 10.2450/2010.0034-10

Table I.

Summary of the available recommendations about vitamin K administration in neonates.

Organisation	Vitamin K dosage
American Academy of Pediatrics	Single intramuscular dose of 0.5 to 1 mg
Canadian Paediatric Society, Committee on Child and Adolescent Health, College of Family Physicians of Canada.	Single intramuscular dose of 0.5 mg (birthweight =1,500 g) or 1.0 mg (birthweight >1,500 g) within the first 6 h after birth
UK Department of Health in 1998	Single intramuscular or oral dose of 400 μg/kg (babies <2.5 kg) or 1 mg (babies >2.5 kg)
Italian Society of Neonatology (two alternatives)	- Single intramuscular dose of 0.5 mg at birth, followed by 25 μg/die orally from the 2^nd to the 14^th week.
	- Single intramuscular dose of 2 mg at birth, followed by 25 μg/die from the 7^th day to the 14^th week