Atorvastatin, sold under the brand name Lipitor, is a medication used to lower cholesterol levels and reduce the risk of heart disease [1]. According to the National Health Service (NHS), atorvastatin should be taken once a day, at the same time each day, with or without food [2]. However, taking atorvastatin with food may help reduce the risk of stomach upset or other gastrointestinal side effects [3].

It is important to follow the instructions of your healthcare provider regarding the use of atorvastatin. Additionally, it is important to inform your healthcare provider of any other medications you are taking, as well as any medical conditions you have, as these may affect the way atorvastatin works in your body.

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/