Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], the patent for Lipitor expired in 2011, which means that generic versions of the drug are available. Lipitor has been shown to be effective in reducing cholesterol levels, but there are concerns about its long-term safety.

A study published in the Journal of the American College of Cardiology [2] found that atorvastatin was generally well-tolerated and effective in reducing cholesterol levels over a period of 10 years. However, the study also noted that there were some side effects associated with long-term use of the drug, including muscle pain, liver damage, and an increased risk of developing type 2 diabetes.

According to Medical News Today [3], other potential side effects of Lipitor include headaches, nausea, diarrhea, and constipation. In rare cases, the drug can cause a serious condition called rhabdomyolysis, which is a breakdown of muscle tissue that can lead to kidney damage.

In conclusion, Lipitor can be safely used long-term for reducing cholesterol levels, but there are potential side effects that should be monitored. Patients taking Lipitor should be aware of the possible side effects and should report any symptoms to their healthcare provider. It is important to weigh the benefits of the drug against the risks, and to discuss any concerns with a healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4059187/
[3] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects