Lipitor is a medication used to lower cholesterol levels in the blood. It works by blocking an enzyme that produces cholesterol in the liver. Skim milk is a low-fat dairy product that is a good source of calcium and vitamin D.

There is no direct evidence that combining Lipitor and skim milk causes any side effects. However, it is important to note that Lipitor can interact with certain foods and beverages, including grapefruit juice, which can increase the risk of side effects [3].

According to a study published in the American Journal of Clinical Nutrition, the consumption of dairy products, including skim milk, can interfere with the absorption of Lipitor and other statins [2]. This can reduce the effectiveness of the medication and increase the risk of side effects.

It is recommended to take Lipitor at the same time every day, with or without food. Patients should avoid drinking grapefruit juice and limit their consumption of alcohol while taking Lipitor [3].

In conclusion, there is no direct evidence that combining Lipitor and skim milk causes any side effects. However, the consumption of dairy products, including skim milk, can interfere with the absorption of Lipitor and reduce its effectiveness. Patients should follow the recommended guidelines for taking Lipitor and avoid consuming grapefruit juice and excessive amounts of alcohol [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1312230/
[3] https://medlineplus.gov/druginfo/meds/a600045.html