How does ASTEPRO 0.15% work?
ASTEPRO 0.15% relieves symptoms by blocking the effects of histamine. Histamine is the primary cause of seasonal allergy symptoms such as sneezing; itchy, runny nose; and nasal congestion. Seasonal and perennial allergens cause symptoms by activating the body’s immune system. The immune system produces antibodies that cause the release of histamine from mast cells.