Benadryl Allergy One A Day Tablets - Effective and Long Lasting Relief from Hay fever, Pet, Skin and Dust Allergie.- One a day allergy relief tablet- Each tablet contains 10mg cetirizine dihydrochloride - Relieves symptoms of hay fever, skin, pet and dust allergies such as sneezing, a runny nose, watery eyes and hives Suitable for adults and children aged 12 years and over Benadryl Allergy One a Day offers effective all day relief from the symptoms of hay fever and other allergic reactions caused by pet, skin and dust allergies. These symptoms include: itchy and runny rose, sneezing, itchy and watery eyes, urticaria (hives).Directions for use: Take one tablet a day.