Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. It belongs to a class of drugs called statins. According to the sources provided, there is no evidence to suggest that Lipitor interacts with citrus fruits, including grapefruit, oranges, lemons, and limes.

The first source [1] provides information on the patent status of Lipitor and does not discuss any interactions with citrus fruits. The second source [2] is a study that explores the effects of statins on muscle damage and liver function, but it does not mention any interactions between Lipitor and citrus fruits. The third source [3] is an article from the Mayo Clinic that provides general information on food and nutrition. It states that grapefruit can interact with certain medications, including some statins, but it does not specifically mention Lipitor.

However, it is important to note that some statins, including simvastatin and lovastatin, can interact with grapefruit and grapefruit juice. These interactions can increase the risk of side effects, such as muscle pain and liver damage. Therefore, it is recommended that people taking these medications avoid grapefruit and grapefruit juice.

In conclusion, based on the sources provided, there is no evidence to suggest that Lipitor interacts with citrus fruits. However, it is important to be aware of potential interactions between grapefruit and other statins. If you have any concerns about possible interactions between Lipitor and other foods or medications, it is recommended that you consult with your healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589309/
[3] https://www.mayoclinic.org/healthy-lifestyle/consumer-health/expert-answers/food-and-nutrition/faq-20057918