Lipitor is a brand name for the drug atorvastatin, which belongs to a class of drugs called statins. According to drugpatentwatch.com [1], Lipitor is used to treat high cholesterol and to lower the risk of stroke and heart attack. Statins work by reducing the amount of cholesterol in the blood, which can help prevent the buildup of plaque in the arteries.

Stopping statins abruptly can lead to withdrawal symptoms, according to goodrx.com [2]. Some of the withdrawal symptoms include muscle pain, muscle weakness, and joint pain. The article explains that these symptoms can be severe enough to make it difficult to perform daily activities.

However, it is important to note that stopping statins abruptly can also have serious health consequences. CNN reports [3] that a study published in the European Heart Journal found that stopping statins after a heart attack or stroke increased the risk of dying from another heart attack or stroke by 60%. The study also found that patients who stopped taking statins had a 46% higher risk of dying from any cause compared to those who continued taking the medication.

In conclusion, abruptly stopping Lipitor or any other statin medication can cause withdrawal symptoms, including muscle pain, weakness, and joint pain. However, it is important to consult with a healthcare provider before stopping any medication, as abruptly stopping statins can also have serious health consequences. Patients who stop taking statins may be at increased risk of dying from another heart attack or stroke, as well as from other causes.

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