<prompt> Mechanism of action of statins: March 2013HMG-CoA synthase stimulatorHMG-CoA reductase stimulatorHMG-CoA synthase inhibitorHMG-CoA reductase inhibitor  <response>: Ans. D i.e. HMG-CoA reductase inhibitor Statins used to lower cholesterol levels, acts by inhibiting the enzyme HMG-CoA reductase 