<prompt> Inhibition of 5lipoxygenase is useful in :Cardiac failureBronchial asthmaHepatic failureArthritis  <response>: Leukotrienes are potent bronchoconstricting agents. These agents play a major role in the pathogenesis of bronchial asthma. The drugs acting by inhibiting their synthesis i.e. lipoxygenase inhibitors or action Cys-LT receptor antagonists are useful in the prophylaxis of bronchial asthma. 