According to the FDA-approved label for Lipitor [2], there are no specific restrictions on consuming skim milk while taking the medication. However, it is recommended to avoid consuming large amounts of grapefruit juice while taking Lipitor, as it can increase the risk of side effects. Additionally, it is important to follow a healthy diet and exercise regularly while taking Lipitor to achieve the best results.

Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood [3]. It works by blocking the production of cholesterol in the liver and increasing the liver's ability to remove LDL cholesterol from the blood. It is typically taken once a day, with or without food.

According to DrugPatentWatch [1], Lipitor's patent expired in 2011, meaning that generic versions of the medication are now available. These generic versions contain the same active ingredient as Lipitor and are just as effective, but may be less expensive.

In summary, there are no specific restrictions on consuming skim milk while taking Lipitor, but it is important to follow a healthy diet and exercise regularly while taking the medication. It is also recommended to avoid consuming large amounts of grapefruit juice while taking Lipitor. Additionally, generic versions of Lipitor are now available and may be less expensive than the brand-name medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s056lbl.pdf
[3] https://medlineplus.gov/druginfo/meds/a600045.html