Lipitor is a commonly prescribed medication for reducing cholesterol levels in the body. However, it is important to consider the potential side effects of the drug, especially for individuals with pre-existing liver conditions.

According to DrugPatentWatch [1], Lipitor is metabolized by the liver and can cause liver damage in rare cases. Therefore, individuals with pre-existing liver conditions should be monitored closely while taking Lipitor.

A study published in the National Library of Medicine [2] found that Lipitor can cause liver damage in patients with pre-existing liver conditions, including hepatitis C. The study recommends that patients with liver disease should be closely monitored while taking Lipitor.

In addition, SingleCare [3] notes that Lipitor can cause elevated liver enzymes in some patients, which can indicate liver damage. Therefore, it is important for patients taking Lipitor to have regular liver function tests to monitor for any potential liver damage.

In conclusion, Lipitor can worsen pre-existing liver conditions and cause liver damage in rare cases. Patients with liver disease should be closely monitored while taking Lipitor, and regular liver function tests should be conducted to monitor for any potential liver damage.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5822686/
[3] https://www.singlecare.com/blog/lipitor-side-effects/