In this multicenter , single-masked , randomized study , 240 patients with signs and symptoms of allergic conjunctivitis were randomized to receive 1 of the following 8 treatments twice daily : cromolyn sodium/chlorpheniramine maleate , diclofenac , epinastine , fluorometholone , ketotifen , levocabastine , naphazoline/antazoline , and olopatadine .
