“…A response to the allergen (as evidenced by a reduction in A min and nasal volume values) was seen in all treatment groups, but there was no significant treatment effect on A min proportion or nasal volume proportion for any treatments, including fexofenadine/pseudoephedrine. On the basis of a previous allergen challenge methodology study 11 in which fexofenadine/pseudoephedrine partially attenuated allergen-induced reduction of A min and nasal volume values, the lack of statistically significant inhibition was not expected. Indeed, the same general methodology was used in both studies.…”