Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. While Lipitor is generally considered safe and effective, like any medication, it can cause side effects. The most common side effects of Lipitor include muscle pain, weakness, and tenderness, as well as nausea, diarrhea, and constipation [2]. However, these side effects are usually temporary and go away once the medication is discontinued.

There have been some concerns about the long-term effects of Lipitor on health. Some studies have suggested that long-term use of statins, including Lipitor, may increase the risk of developing diabetes, liver damage, and cognitive impairment [3]. However, these studies have been controversial, and the evidence is not conclusive.

According to a review of the literature, the benefits of statins like Lipitor in reducing the risk of heart disease and stroke far outweigh the potential risks [1]. The review found that while some studies have suggested a link between statin use and an increased risk of diabetes, the risk is relatively small and is outweighed by the benefits of statins in reducing the risk of heart disease and stroke.

In conclusion, Lipitor is generally considered safe and effective for lowering cholesterol levels. While it can cause side effects, these are usually temporary and go away once the medication is discontinued. While there have been some concerns about the long-term effects of Lipitor on health, the evidence is not conclusive, and the benefits of statins in reducing the risk of heart disease and stroke far outweigh the potential risks [1][2][3].

Sources:
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4059187/
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR