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Questions About Cancer? 1-800-4-CANCER

NCI Dictionary of Cancer Terms

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Allegra  listen  (uh-LEH-gruh)

  A drug used to treat certain allergy symptoms. It blocks a chemical released during an allergic response that causes itching, sneezing, runny nose, wheezing, and watery eyes. It is a type of antihistamine. Also called fexofenadine.