statins are a fairly new mode of lowering cholesterol in our system, basically it is a HmgCoA reductase inhibitor. in english it is a compound that intercepts an enzyme in the liver that manufactures cholesterol. prolonged use creates a small buildup of excess materials that your body slowly eliminates by other means. (galing ng katawan natin no?)
it has an effect on the liver (albeit minimal) so usually therapy is given only for 6 months, stopped for a month or two then you can start again. the risk to benefit ratio of keeping the gunk in your arteries down versus liver damage is very much in favor of keeping your cholesterol down.
lipitor (atorvastatin) is the most succesful statin produced in the U.S. and has started to be prescribed quite a lot here as well. they are often used with other medications like fibrates.
basta ganto statins are good for keeping LDL and VLDL's (bad cholesterol) down and helping HDL's (good cholesterol) increase... while fibrates are good for keeping triglycerides (another bad cholesterol) down