According to the sources provided, Lipitor (atorvastatin) can be taken with or without food. The NHS website [2] suggests taking Lipitor once a day, at the same time each day, and that it can be taken with or without food. However, it is important to note that taking Lipitor with a high-fat meal may decrease its effectiveness. Drugs.com [3] also confirms that Lipitor can be taken with or without food, but recommends avoiding grapefruit or grapefruit juice while taking this medication, as it can increase the risk of side effects. The Drug Patent Watch website [1] provides information on the expiration date of the Lipitor patent and does not address the question of whether Lipitor can be taken with food. In summary, Lipitor can be taken with or without food, but taking it with a high-fat meal may decrease its effectiveness, and grapefruit or grapefruit juice should be avoided while taking this medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.nhs.uk/medicines/atorvastatin/how-and-when-to-take-atorvastatin/
[3] https://www.drugs.com/medical-answers/eat-food-taking-atorvastatin-3565628/