Breathe Easy, Live Freely! 🌬️ From the #1 allergist-recommended OTC antihistamine. Enjoy 24-hour relief from pesky allergy symptoms. Suitable for ages 6 and up. Starts working in as little as 1 hour! Tackles both indoor and outdoor allergens. 24-hour relief Allergist-recommended 10 mg Cetirizine Zyrtec 24 Hour Allergy Relief Tablets offer powerful, prescription-strength relief from indoor and outdoor allergies with 10 mg of cetirizine HCl per tablet. This 30-count bottle is designed to alleviate symptoms like runny nose, sneezing, and itchy eyes, providing effective relief that starts working in just one hour and lasts all day.