This was a multi-center, randomized, double-blind, parallel-group, placebo-controlled, double dummy study of children with SAR conducted during the Spring tree and grass allergy season. Subjects qualified for randomization if the diary cards included (1) symptom scores of ≥2 for at least 2 of the following 4 rhinoconjunctivitis symptoms on 4 or more days: sneezing, runny nose, itchy eyes, and watery eyes; and (2) a total rhinoconjunctivitis (or Total Symptom Severity Complex [TSSC]) score of ≥5 on any 4 days. The TSSC score was expressed as the sum of the 4 individual symptoms scores recorded in the daily diary cards for the following symptoms: sneezing, runny nose, itchy eyes, and watery eyes.