Hives (known medically as urticaria) are red, raised welts on the skin. They are usually quite itchy. Hives are commonly caused by allergies, although other factors (such as stress) can also cause them. Some people have hives regularly without finding any cause for their symptoms. Hives usually respond well to antihistamine treatment, although many of the available antihistamines cause drowsiness. Zyrtec is effective for treating the itching due to hives, often without causing drowsiness.
PRECAUTIONS: Before taking cetirizine, tell your doctor or pharmacist if you are allergic to it; or to hydroxyzine; or if you have any other allergies. Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease. This drug may make you drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Limit alcoholic beverages. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug, especially the drowsiness effect.
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.
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