Zyrtec is an antihistamine. Antihistamines prevent sneezing, runny nose, itching and watering of the eyes, and other allergic symptoms.

Zyrtec is used to treat allergies, hives (urticaria), and other allergic inflammatory conditions.

Zyrtec may also be used for purposes other than those listed in this medication guide.

Special precautions

• Before taking this medication, tell your doctor if you have kidney or liver disease. You may need a lower dose or special monitoring during your therapy with zyrtec.

• Zyrtec is in the FDA pregnancy category B. This means that it is unlikely to harm an unborn baby. Do not take zyrtec without first talking to your doctor if you are pregnant.

• Zyrtec passes into breast milk and may affect a nursing baby. Do not take zyrtec without first talking to your doctor if you are breast-feeding a baby.

• If you are over 60 years of age, you may be more likely to experience side effects from zyrtec. You may require a lower dose of this medication.

Side effects

Stop taking zyrtec and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives).

Other, less serious side effects may be more likely to occur. Continue to take zyrtec and talk to your doctor if you experience

• sleepiness, fatigue, or dizziness;

• headache; or

• dry mouth

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Keep all appointment with your doctor.

Don’t let anyone else take your medicines.

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