FLONASE HELPS BLOCK 6 KEY SUBSTANCES. ALLERGY PILLS ONLY BLOCK 1**.
Make the switch to FLONASE and be greater than your allergies.
**Mechanism vs. most OTC allergy pills. FLONASE acts on multiple inflammatory substance (histamine, prostaglandins, cytokines, tryptases, chemokines, and leukotrienes. The exact number and precise mechanism are unknown.