
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.

PRESCRIBED FOR: Cetirizine is used by people who suffer from allergic symptoms such as sneezing, itchy nose (allergic rhinitis) and itchy eyes. It also has been used to treat hives.

Tell your doctor if you regularly use other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by cetirizine.

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