Zyrtec Rapid Acting 24 hour Hayfever Allergy Relief Antihistamine Liquid Capsules are a soft gel capsule that relieve hayfever allergy symptoms. When your immune system takes offence to an outside particle or substance, your body produces antibodies to attack this normally harmless substance by releasing a chemical called histamine. Zyrtec contains the active ingredient, cetirizine, which helps to block the production of histamines to relieve symptoms of hayfever allergies. Cetirizine is part of a class of medications called antihistamines. Zyrtec Liquid Capsules provide fast powerful 24 hour relief of hayfever allergy symptoms, including: - Sneezing - Runny, itchy nose - Red, itchy and watery eyes - Post nasal drip Zyrtec is effective against seasonal hayfever triggers, such as: - Grass Pollen - Tree Pollen - Weed Pollen Hayfever & Allergy Relief 24 Hour Relief Antihistamine 10 Liquid Capsules