Prevention of Colic With the Probiotic Lactobacillus Reuteri

Colic is a term for inconsolable crying happened in the first months of life. Its etiology is multifactorial and caregiver and pediatrician generates among other problems: anxiety, risk of child abuse as well as economic costs. There is now enough evidence for the treatment of colic using probiotics, especially Lactobacillus reuteri. The investigators study aims to demonstrate the utility for the prevention of colic with L. reuteri and thereby avoid the problems caused by this pathology. Objective: Compare the number of events of colic among infants with oral probiotic Lactobacillus reuteri during the first month of life versus infants with placebo Study Design. Double blind, randomized, controlled, 492 neonates of 37-42 gestational age, breast or formula fed, will receive L. reuteri 5 drops (1x108 CFU) daily or placebo for 28 days. The investigators trial will be performed at Naval Hospital in Mexico City.