Overview A Study to Evaluate the Safety and Effectiveness of a Nasal Spray to Treat Perennial Allergies Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The purpose of this study is to determine if two allergy medications are more effective than placebo. Phase: Phase 3 Details Lead Sponsor: Meda PharmaceuticalsTreatments: Azelastine