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Zyrtec

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


Drug Name

Zyrtec (Cetirizine)

Drug Uses

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.

How Taken

Zyrtec comes as a tablet to take it orally. It usually is taken once a day. It may be taken regularly or when allergy symptoms flare up. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take Zyrtec exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Drug Class and Mechanism

Cetirizine is the fourth addition to a new generation of allergy medications called "non- sedating" antihistamines or histamine (H-1) receptor blockers. These new antihistamines are called non-sedating because they cause less sedation than their predecessors; however, cetirizine is more sedating than the other non-sedating antihistamines.

Antihistamines block the effects of histamines. Histamines cause symptoms of allergy when released by allergic reactions in the body. Antihistamines block the ability of histamine to promote the allergy symptoms. For further information, please read the Allergic Rhinitis article.

Missed Dose

If you forget to take a dose, do not take an extra tablet to catch up for the dose you forgot. Wait and take your next tablet at the regular time. Do not take more tablets than your doctor prescribed.

Storage

Store at 20-25 degrees C (68-77 degrees F); excursions permitted to 15-30 degrees C (59-86 degrees F).