Pharmacology All of the following statements are true, EXCEPT: A Cycloxygenase I is an inducible enzyme B Cycloyegenase II is induced by cytokines at sites of inflammation C PG's and leukotrienes are derived from arachidonic acid D Leukotrienes cause smooth muscle constriction 💡 Explanation All of the following statements are true, EXCEPT: ✓ Correct Answer: A. Cycloxygenase I is an inducible enzyme