Q: How should I take Zyrtec?

A: Take Zyrtec exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you. Take each dose with a full glass of water. Zyrtec can be taken with or without food. Zyrtec is usually taken once daily. Follow your doctor's instructions. Store Zyrtec at room temperature away from moisture and heat.

Q: What is Zyrtec?

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

Q: Can I take Zyrtec before I experience my allergy symptoms?

A: Yes. When you suspect that you are about to experience your allergy symptoms (e.g. you are planning to mow the lawn or visit someone who owns a cat) then taking an antihistamine before exposure to the allergen is the best way of using the product. This is far more effective than taking the product once your symptoms have occurred.

Q: What happens if I overdose?

A: Seek emergency medical attention. Symptoms of a Zyrtec overdose are not well known, but extreme sleepiness, confusion, and weakness may be expected.

Q: Who should not take Zyrtec?

A: 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.