Lipitor is a medication used to lower cholesterol levels in the blood. According to the sources provided, there is no evidence that Lipitor contains animal-derived ingredients.

DrugPatentWatch [1] lists the active ingredient of Lipitor as atorvastatin calcium, which is a synthetic compound and not derived from animals. The FDA label for Lipitor [2] does not mention any animal-derived ingredients in the formulation. Additionally, a study published in the British Medical Journal [3] analyzed the composition of Lipitor and did not find any animal-derived ingredients.

Therefore, based on the available information, it can be concluded that Lipitor does not contain animal-derived ingredients. However, it is important to note that the excipients or inactive ingredients used in the formulation of Lipitor may vary depending on the manufacturer. Patients with specific dietary requirements or allergies should consult with their healthcare provider or pharmacist to ensure that Lipitor is safe for them to use.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s057lbl.pdf
[3] https://www.bmj.com/bmj/section-pdf/752705?path=/bmj/348/7944/Analysis.full.pdf