Mechanism of action of zileuton: September 2012, March 2013: (A) Cyclo-oxygenase inhibitor, (B) 5-lipo-oxygenase inhibitor, (C) 5-phospho-di-esterase inhibitor, (D) Prevents mast cell degranulation
Answer is B. Ans. B i.e. 5-lip-oxygenase inhibitor