AccolateListen to pronunciation(A-koh-layt)A drug used to prevent and treat symptoms of asthma. It blocks substances that cause inflammation in the lungs. It is a type of antiasthmatic agent and a leukotriene receptor antagonist. Also called zafirlukast.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#