Pravastatin is a lipoprotein-lowering drug via reversibly inhibiting hydroxymethylglutaryl-CoA (HMG-CoA) reductase and the synthesis of very-low-density lipoproteins.
Pravastatin lactone is a metabolite of pravastatin , a hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor that is a ring-hydroxylated metabolite of mevastatin . Pravastatin lactone is formed when pravastatin undergoes acid-catalyzed non-enzymatic lactonization in the stomach following oral administration.