Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], it was first approved by the FDA in 1996 and has since become one of the most widely prescribed drugs in the world. While it is generally considered safe and effective, it can cause some side effects, as reported by the Mayo Clinic [3]. These include muscle pain, liver damage, digestive problems, and an increased risk of developing type 2 diabetes. It is important to note that not everyone who takes Lipitor will experience these side effects, and they are typically mild and go away on their own.

On the other hand, exercise is a natural way to lower cholesterol levels and improve overall health. According to a study published in the National Library of Medicine [2], regular physical activity can increase HDL cholesterol (the "good" cholesterol) and decrease LDL cholesterol (the "bad" cholesterol). Additionally, exercise can help with weight loss, reduce inflammation, and lower blood pressure. Unlike Lipitor, exercise has no known negative side effects and can have numerous other health benefits.

In conclusion, while Lipitor can be an effective way to lower cholesterol levels, it can also cause some side effects. Exercise, on the other hand, is a natural and safe way to improve cholesterol levels and overall health. As with any medical decision, it is important to consult with a healthcare professional to determine the best course of action for individual needs and circumstances.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4679305/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013