*Mechanism vs most over-the-counter (OTC) allergy pills. FLONASE nasal sprays act on multiple inflammatory substances (histamine, prostaglandins, cytokines, tryptases, chemokines, and leukotrienes). The exact number and precise mechanism are unknown.
ALL ABOUT ALLERGIES
From living with allergies to knowing how to treat them, FLONASE has the information you need to lead a life not limited by allergies.