The primary objective of this study is to evaluate the clinical efficacy of the drug
Cloratadd D ® (loratadine + pseudoephedrine sulfate - EMS S/A) compared to the drug Claritin
D ® (loratadine + pseudoephedrine sulfate - Schering Plough) in patients with allergic
rhinitis by quantification of the scores of clinical parameters (signs and symptoms) and
laboratory (nasal flow) down through time.