Lipitor is a medication used to lower cholesterol levels in the body. While it is generally well-tolerated, it can cause side effects, particularly in the liver. According to DrugPatentWatch [1], the active ingredient in Lipitor is atorvastatin, which can cause elevated liver enzymes in some patients. This is typically a mild and reversible effect, but in rare cases, it can lead to more serious liver problems.

DrugWatch [2] reports that Lipitor can cause liver damage in some patients, which can lead to symptoms such as jaundice, dark urine, and abdominal pain. If these symptoms occur, patients should seek medical attention immediately. The risk of liver damage is increased in patients who drink alcohol regularly, have a history of liver disease, or take other medications that can affect the liver.

The Mayo Clinic [3] notes that while liver problems are a potential side effect of Lipitor, they are relatively rare. Patients who take Lipitor should have their liver function monitored regularly, particularly in the first few months of treatment. If liver function tests are abnormal, the patient's doctor may adjust the dosage or switch to a different medication.

In summary, Lipitor can cause elevated liver enzymes and, in rare cases, liver damage. Patients who take Lipitor should be aware of the signs of liver problems and should have their liver function monitored regularly. Patients who have a history of liver disease or regularly consume alcohol should discuss the risks and benefits of Lipitor with their doctor before starting treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugwatch.com/lipitor/side-effects/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013