Lipitor is a medication used to lower cholesterol levels in the body. It is important to consult a healthcare professional before stopping the medication, as abruptly stopping the drug can have negative effects on one's health. According to GoodRx [2], there are eight reasons why one should not stop taking statins like Lipitor without consulting their doctor, including an increased risk of heart attack and stroke, a higher likelihood of developing cardiovascular disease, and the potential for muscle damage. Healthline [3] advises that individuals should not stop taking statins without first consulting their healthcare provider. It is recommended that patients gradually reduce their dose of Lipitor under the supervision of a healthcare professional. Additionally, patients should not stop taking Lipitor if they experience side effects without first consulting their doctor. Drug Patent Watch [1] provides information on the patent expiration of Lipitor, but does not provide any information on the safety of stopping the medication cold turkey. In summary, it is not safe to stop taking Lipitor cold turkey, and patients should consult their healthcare provider before making any changes to their medication regimen.

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.healthline.com/health/high-cholesterol/how-to-safely-come-off-statins