Lipitor is a brand name for the drug atorvastatin, which is a type of medication known as a statin. Statins are used to lower cholesterol levels in the blood and reduce the risk of heart attack and stroke [1]. Abruptly stopping the use of Lipitor or any statin medication can have several risks.

Firstly, stopping statins abruptly can cause a rebound effect where the cholesterol levels in the blood can rise rapidly to higher levels than before the medication was started. This can increase the risk of heart attack, stroke, and other cardiovascular events [2].

Secondly, stopping statins abruptly can cause withdrawal symptoms, such as muscle pain, weakness, and cramps. These symptoms can be severe and may persist for several weeks or even months [2].

Thirdly, stopping statins abruptly can increase the risk of developing diabetes. Statins have been shown to reduce the risk of developing diabetes in people who are at high risk of the disease. Stopping the medication can reverse this effect and increase the risk of developing diabetes [3].

Finally, stopping statins abruptly can increase the risk of developing blood clots. Statins have been shown to reduce the risk of blood clots in people who are at high risk of the condition. Stopping the medication can reverse this effect and increase the risk of developing blood clots [3].

In conclusion, stopping Lipitor or any statin medication abruptly can have several risks, including a rebound effect, withdrawal symptoms, an increased risk of developing diabetes, and an increased risk of developing blood clots. It is important to talk to a healthcare provider before stopping any medication and to follow their instructions for discontinuing the medication safely [2][3].

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