Q: What are Allergies?

A: Simply put, an allergy is a response by your body to something that is ordinarily harmless. The purpose of the immune system is to recognize harmful infection-causing invaders and to get rid of them. However, for some people, the immune system overreacts to ordinarily harmless substances like indoor allergens such as pet dander, pollen, dust, and mold and outdoor allergens such as pollen from grass, trees and weeds. These people have "allergies." Their bodies attempt to expel these ordinarily harmless substances, causing sneezing; a runny nose; itchy, watery eyes and sometimes hives.

Q: What is Clarinex?

A: Clarinex is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Clarinex is used to treat the symptoms of allergies, such as sneezing, watery eyes, and runny nose. It is also used to treat skin hives and itching in people with chronic skin reactions.

Q: What other drugs will affect Clarinex?

A: There may be other drugs that can affect Clarinex. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Q: What happens if I miss a dose?

A: Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

Q: What should I discuss with my healthcare provider before taking Clarinex?

A: Do not take Clarinex if you are allergic to desloratadine or to loratadine (Claritin). Before taking Clarinex, tell your doctor if you are allergic to any drugs, or if you have kidney or liver disease. If you have any of these conditions, you may not be able to use Clarinex, or you may need dosage adjustments or special tests during treatment.