Claritin d

claritin and claritin-D work great for me. i'm definitely better on it than off this time of year, based on how lousy i felt last weekend. From the FAA doc I linked above: Exception: Nonsedating antihistamines (loratadine, desloratadine, and fexofenadine) may be used while flying, if symptoms are controlled without adverse side effects after an adequate initial trial period. Claritin D, which you said doesn't work, is loratadine. Allegra is fexofenadine Clarinex is.