Evaluation of the Efficacy of a New Specific Infant Formula in Case of Functional Constipation

New formula containing a prebiotic and a mix of probiotics, randomly assigned to infants during a 2-month period and allocated to all infants during the optional open-label follow-up period of 2 months.

Standard infant formula containing no prebiotic nor probiotic, randomly assigned to infants during a 2-month period followed by an optional open-label follow-up period of 2 months with the new infant formula