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Receptors: CysLTRs | Mechanism_of_action = Enzyme inhibition Receptor antagonism | Chemical_class = }} An antileukotriene is a drug which functions as a leukotriene-related enzyme inhibitor (arachidonate 5-lipoxygenase) or leukotriene receptor antagonist (cysteinyl leukotriene receptors) and consequently opposes the function of these inflammatory mediators; leukotrienes are produced by the immune system and serve to promote bronchoconstriction, inflammation, microvascular permeability, and mucus secretion in asthma and COPD. Leukotriene receptor antagonists are sometimes colloquially referred to as ''leukasts''. Leukotriene receptor antagonists, such as montelukast, zafirlukast, and pranlukast, and 5-lipoxygenase inhibitors, like zileuton and hypericum perforatum, can be used to treat these diseases.〔 They are less effective than corticosteroids for treating asthma, but more effective for treating certain mast cell disorders. ==Approaches== There are two main approaches to block the actions of leukotrienes.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Antileukotriene」の詳細全文を読む スポンサード リンク
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