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. According to the Drug Patent Watch [1], Lipitor's patent expired in 2011, which means that other companies can now produce and sell generic versions of the drug.

Statins are effective in lowering cholesterol levels, but they are not a permanent solution. According to UnityPoint Health [2], stopping statin medication can cause cholesterol levels to rise again. The article states that lifestyle changes, such as a healthy diet and regular exercise, can help to maintain healthy cholesterol levels. However, these changes may not be enough for some people, and they may need to continue taking statins to manage their cholesterol levels.

The Mayo Clinic [3] also notes that stopping statin medication can cause cholesterol levels to rise again, and that statins should be taken as prescribed by a doctor. The article also mentions that statins can have side effects, and that people should talk to their doctor if they experience any symptoms while taking the medication.

In conclusion, Lipitor (atorvastatin) can lower cholesterol levels effectively, but it is not a permanent solution. Stopping statin medication can cause cholesterol levels to rise again, and lifestyle changes may not be enough for some people. Statins should be taken as prescribed by a doctor, and any side effects should be reported to the doctor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.unitypoint.org/news-and-articles/can-you-stop-taking-statins-once-you-start
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statins/art-20045772