[Clinical effectiveness and tolerance of loratadine versus cetirizine in the treatment of seasonal allergic rhinitis]. / Efficacité clinique et tolérance de la Loratadine versus Cétirizine dans le traitement de la rhinite allergique saissonnière.

A double blind multicentre study of seasonal rhinitis (108 patients) has compared Loratadine and Cetirizine. The results of clinical scores are significantly good for both products. Only tolerance is different and in favour of Loratadine, since sleepiness was found in 9.5% of patients treated with Cetirizine, and 3.6% with Loratadine.