Lipitor is a brand name for the drug atorvastatin, which belongs to a class of drugs called statins. Statins are prescribed to lower cholesterol levels in the blood, which can help reduce the risk of heart disease and stroke [3]. According to Medical News Today, studies have shown that Lipitor can reduce LDL cholesterol (the "bad" cholesterol) levels by up to 60% [2]. However, the effect of Lipitor on an individual's cholesterol level can vary depending on several factors, including their age, sex, weight, and overall health.

It is important to note that while Lipitor can be effective in reducing cholesterol levels, it can also have side effects. The Cleveland Clinic notes that some common side effects of statins include muscle pain, liver damage, and digestive problems [3]. It is important to talk to a doctor about any concerns or side effects that may arise while taking Lipitor.

In conclusion, Lipitor has been shown to be effective in reducing LDL cholesterol levels in the blood, but the effect on an individual's cholesterol level can vary. It is important to talk to a doctor about any concerns or side effects that may arise while taking Lipitor.

Sources:
[2] https://www.medicalnewstoday.com/articles/248136
[3] https://my.clevelandclinic.org/health/treatments/22282-statins