ZyrtecŪ is a non-prescription medication used to treat several allergy symptoms, including runny nose, sneezing, and itchy eyes. The drug is also used to treat itching due to hives (which may or not be caused by allergies). Zyrtec works by blocking the effects of histamine -- a chemical in the body that causes sneezing, itching, and irritation when you come into contact with something you're allergic to. While some people take the drug year-round, others take it only during allergy season.
Children's Zyrtec Hives Relief syrup (equal to Children's Zyrtec Allergy syrup, except it is labeled for hives, not for allergies).
It is also approved to treat itching due to hives, which may or may not be caused by allergies. The medication is also available in combination with a decongestant (see Zyrtec-D for more information). Although Zyrtec and Zyrtec-D were originally prescription products, they are now available without a prescription.
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