If you cannot use Zyrtec, you can try another second-generation antihistamine like Allegra (fexofenadine) or Claritin (loratadine). However, these OTC drugs have similar mechanisms of action to ...

Zyrtec (cetirizine), Allegra (fexofenadine) and Claritin (loratadine) are all over-the-counter antihistamines that help relieve itchy eyes and throat, runny nose, sneezing and hives. People ...

Xyzal (levocetirizine) and Zyrtec (cetirizine) are antihistamines taken to relieve allergy symptoms such as sneezing, runny nose, itchy eyes, and hives. Although Xyzal and Zyrtec work similarly ...