Zyrtec

Definition

Zyrtec is a brand name for cetirizine, an antihistamine used to relieve allergy symptoms such as runny nose, sneezing, and itching. It is commonly used to treat both seasonal allergies and chronic urticaria (hives).

5 Must Know Facts For Your Next Test

1. Zyrtec works by blocking histamine receptors in the body, reducing allergic reaction symptoms.
2. It is typically taken once daily, with or without food.
3. Common side effects include drowsiness, dry mouth, and fatigue.
4. Zyrtec can interact with other central nervous system depressants like alcohol and sedatives.
5. It is available over-the-counter in various forms including tablets, chewable tablets, and syrup.

Review Questions

• What is the generic name for Zyrtec?
• How does Zyrtec alleviate allergy symptoms?
• Name two common side effects of Zyrtec.

Related terms

Antihistamines:

Medications that counteract the effects of histamine in allergic reactions.

Decongestants:

Drugs that relieve nasal congestion by constricting blood vessels in the nasal passages.

Cetirizine:

The generic name for Zyrtec.