Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to the sources provided, it is recommended to take Lipitor with or without food. However, taking it with food may help to reduce the likelihood of experiencing stomach upset.

The NHS website [2] recommends taking Lipitor once a day, at the same time each day. It can be taken with or without food, but it is best to take it at a consistent time each day. The website also advises that it is important to continue taking Lipitor even if you feel well, as it is a long-term treatment for high cholesterol.

Similarly, the Drugs.com website [3] states that Lipitor can be taken with or without food, and that taking it with food may help to reduce stomach upset. However, it also advises that grapefruit and grapefruit juice should be avoided while taking Lipitor, as they can increase the risk of side effects.

In conclusion, Lipitor can be taken with or without food, but it is recommended to take it at the same time each day to maintain consistency. Taking it with food may help to reduce the likelihood of stomach upset. It is important to continue taking Lipitor as prescribed, even if you feel well. Finally, grapefruit and grapefruit juice should be avoided while taking Lipitor to reduce the risk of side effects.

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/