Lipitor is a brand name for the drug atorvastatin, which is a type of medication known as a statin. Statins are commonly used to lower cholesterol levels in the blood, particularly low-density lipoprotein (LDL) cholesterol, which is often referred to as "bad" cholesterol.

According to the sources provided, Lipitor has been shown to be highly effective in lowering cholesterol levels. In fact, it is one of the most widely prescribed statins in the world [1]. The drug works by inhibiting an enzyme in the liver that is responsible for producing cholesterol, thereby reducing the amount of cholesterol that is released into the bloodstream [2].

One study found that Lipitor was able to lower LDL cholesterol levels by an average of 39%, while also increasing levels of high-density lipoprotein (HDL) cholesterol, which is often referred to as "good" cholesterol [3]. Another study found that Lipitor was able to reduce the risk of heart attack, stroke, and other cardiovascular events by as much as 36% in people with high cholesterol [2].

It is worth noting that like all medications, Lipitor can have side effects. Common side effects include muscle pain and weakness, digestive problems, and an increased risk of developing type 2 diabetes [2]. However, for most people, the benefits of taking Lipitor to lower cholesterol levels outweigh the potential risks.

In conclusion, Lipitor is a highly effective medication for lowering cholesterol levels, particularly LDL cholesterol. While it may have some side effects, it has been shown to significantly reduce the risk of cardiovascular events in people with high cholesterol. If you have concerns about your cholesterol levels, you should speak with your healthcare provider to determine whether Lipitor or another statin medication may be right for you.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/248136
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statins/art-20045772