Lipitor is a brand name for the drug atorvastatin, which is a medication used to lower cholesterol levels in the blood. According to the National Health Service (NHS) [2], Lipitor should be taken once a day, preferably at the same time every day. It can be taken with or without food, but it is recommended to take it at the same time every day with a glass of water. The NHS also advises patients to follow their doctor's instructions and read the patient information leaflet that comes with the medication.

According to Drugs.com [3], atorvastatin can be taken with or without food. However, it is recommended to take it at the same time every day, either in the morning or in the evening. If a patient takes atorvastatin with food, it may help to reduce the risk of stomach upset.

The Drug Patent Watch [1] does not provide any information about whether Lipitor should be taken before or after meals. However, it is important to note that patients should always follow their doctor's instructions regarding the timing and dosage of their medication.

In summary, Lipitor (atorvastatin) can be taken with or without food, but it is recommended to take it at the same time every day. Patients should follow their doctor's instructions and read the patient information leaflet that comes with the medication. If a patient experiences any side effects or has questions about how to take the medication, they should consult their doctor or pharmacist.

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/