How Long Does it Take for ZYRTEC® to Work? The Science Behind Zyrtec’s Fast Relief | ZyrTalk™

Did you know that ZYRTEC® starts to work at hour 1? In this video, scientist Kevin explains how ZYRTEC® gets to work fast to help relieve your worst allergy symptoms. Learn about the science behind histamine – the chemical your body produces that causes you to experience allergy symptoms – and how ZYRTEC® blocks histamine to provide fast and effective allergy symptom relief.

Learn more about antihistamines, such as ZYRTEC®, here: https://www.zyrtec.com/allergy-guide/...

Learn more about cetirizine, the active ingredient in ZYRTEC, here: https://www.zyrtec.com/allergy-guide/...

Shop & Discover ZYRTEC® products: https://www.zyrtec.com/products

Subscribe to ZYRTEC® on YouTube to keep up with our latest videos:    / zyrtec  

Connect with ZYRTEC® on social media:
ZYRTEC® on Facebook:   / zyrtec  
ZYRTEC® on Instagram:   / zyrtecallergy