Atorvastatin, commonly sold under the brand name Lipitor, is a medication used to lower cholesterol levels in the blood. According to DrugPatentWatch [1], Lipitor is classified as a BCS class II drug, meaning it has low solubility and high permeability. The absorption of BCS class II drugs can be affected by food intake.

A study published in the American Journal of Cardiology [2] investigated the effect of food on the absorption of atorvastatin. The study concluded that the bioavailability of atorvastatin was not significantly affected by food. However, it is worth noting that the study was conducted on a small sample size of healthy volunteers, and the results may not be applicable to all individuals.

Drugs.com [3] suggests that atorvastatin can be taken with or without food. However, it is recommended to take the medication at the same time every day and to follow the instructions of the prescribing healthcare provider.

In summary, the available sources suggest that taking Lipitor with meals may not significantly affect its absorption. However, it is important to follow the instructions of the prescribing healthcare provider and to take the medication at the same time every day.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/8568017/
[3] https://www.drugs.com/medical-answers/eat-food-taking-atorvastatin-3565628/