Lipitor is a medication that is used to lower cholesterol levels in the blood. It belongs to a class of drugs called statins, which work by inhibiting the enzyme responsible for producing cholesterol in the liver. According to [1], the patent for Lipitor expired in 2011, which means that generic versions of the drug are now available.

Stopping Lipitor abruptly can have some side effects, as noted in [2]. One of the most significant risks of stopping statins is that it can lead to a sudden increase in cholesterol levels. This can increase the risk of heart attack and stroke. Additionally, stopping statins can cause muscle pain and weakness, as well as joint pain. In rare cases, it can also lead to a condition called rhabdomyolysis, which is a breakdown of muscle tissue that can cause kidney damage.

It is important to note that not everyone who stops taking Lipitor will experience these side effects. However, it is recommended that patients do not stop taking statins without first consulting their doctor. In some cases, a doctor may recommend that a patient stop taking Lipitor or switch to a different medication.

A study reported by [3] found that the benefits of statins outweigh the risks for most patients. The study showed that the risk of side effects such as muscle pain and weakness was relatively low, and that the benefits of statins in preventing heart attacks and strokes were significant. However, the study also noted that some patients may be at higher risk for side effects than others, and that individual patients should discuss the risks and benefits of statin therapy with their doctor.

In conclusion, stopping Lipitor can have some side effects, including an increased risk of heart attack and stroke, muscle pain and weakness, joint pain, and in rare cases, rhabdomyolysis. Patients should not stop taking Lipitor without first consulting their doctor. It is important to weigh the risks and benefits of statin therapy on an individual basis, and to work with a healthcare provider to determine the best course of treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/classes/statins/stopping-statins-eight-reasons-you-should-not-stop-your-cholesterol-drug
[3] https://www.cnn.com/2017/07/24/health/statins-side-effects-outcomes-study/index.html