Can a Nasal Decongestant Test Predict Treatment Outcomes in Seasonal Allergic Rhinitis?

Inclusion Criteria

1. Males and females between 18 and 60 years of age.
2. History of grass and/or ragweed allergic rhinitis.
3. Positive skin or RAST test to grass, trees and/or ragweed antigen.
4. Symptomatic at time of entry into study.

Exclusion Criteria

1. Women of childbearing potential not using the contraception method(s) (Birth control pills, depo Provera, double barrier) as well as women who are pregnant or breastfeeding.
2. Patients with severe medical condition(s) that in the view of the investigator prohibits participation in the study (heart, lung, kidney, neurological, oncologic or liver disease).
3. Use of any other investigational agent in the last 30 days.
4. Absence of nasal symptoms.
5. Smoking.
6. URI at the time of screening.