Atorvastatin, commonly known by the brand name Lipitor, is a medication used to treat high cholesterol levels. According to MyMed, discontinuing atorvastatin abruptly can cause an increase in cholesterol levels, which can lead to the recurrence of previous symptoms. However, there is no evidence to suggest that atorvastatin withdrawal causes any other adverse effects.

In fact, a study published in the Journal of the American College of Cardiology found that patients who stopped taking statins, including atorvastatin, did not experience any withdrawal symptoms. The study also noted that discontinuing statins can increase the risk of cardiovascular events, such as heart attack and stroke.

It is important to note that any changes to medication should be discussed with a healthcare provider. Patients should not discontinue atorvastatin without consulting their doctor, as abruptly stopping the medication can have adverse effects on cholesterol levels and overall health.

Sources:
[1] https://www.mymed.com/medication/atorvastatin-lipitor/discontinuation-and-withdrawal-of-atorvastatin-lipitor
[2] https://www.cnn.com/2017/07/24/health/statins-side-effects-outcomes-study/index.html
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR