Rosuvastatin belongs to a class of medications commonly called "statins" which are medications given for high low density lipoprotein (LDL) 'bad' cholesterol to prevent atherosclerosis (hardening of blood vessels) and lower risk of heart attacks and other circulation problems. Recent studies in the general non-HIV infected population have shown that the beneficial effect of statins in preventing circulation problems is larger than would be expected from lowering of LDL-cholesterol alone. It has been suggested that the additional beneficial effect of statins may be due to the anti-inflammatory effect of statins.