Double Blind Controlled Trial of an Extensively Hydrolyzed Formula With a Probiotic vs. an Extensively Hydrolyzed Formula Without a Probiotic

Inclusion Criteria: * ≤14 years of age * Essentially asymptomatic for a minimum of 7 days pre-challenge. * Successful previous consumption of Extensively Hydrolyzed Formula within 1 week of study enrollment * Medically documented allergy to cow's milk Exclusion Criteria: * Presence of underlying systemic disease or other illness * Used Beta-blockers within 12-24 hours of challenges * Use of short-acting antihistamines within 3 days * Use of medium-acting antihistamines within 7 days * Use of long-acting antihistamines within 6 weeks * Use of oral steroid medication within 3 weeks