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How do Zerviate drops work to treat allergic conjunctivitis?

Medically reviewed by Last updated on Jun 25, 2019.

Official Answer


Zerviate (cetirizine hydrochloride ophthalmic solution, 0.24%) is a histamine-1 (H1) receptor antagonist eye drop formulation for the treatment of itching linked to allergic conjunctivitis.

Blocking H1 receptors decreases the permability, dilation and fluid escape of veins in the eye and lowers symptoms due to itchy, watery eyes.

Zerviate is the first eye drop formulation of cetirizine, also commonly known as the brand Zyrtec.

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