Lipitor is a prescription medication that is used to lower cholesterol levels in the body [1]. It belongs to a class of drugs known as statins and is commonly prescribed to patients who have high levels of low-density lipoprotein (LDL) cholesterol, also known as "bad" cholesterol.

There is no evidence to suggest that taking Lipitor with non-fat dairy products would have any adverse effects. However, it is recommended that patients taking Lipitor avoid consuming large amounts of grapefruit juice, as it can interfere with the metabolism of the drug and increase the risk of side effects [2].

It is important to note that Lipitor should only be taken under the guidance of a healthcare provider. Patients should follow their healthcare provider's instructions regarding dosing and any dietary restrictions or recommendations.

In comparison to other statins, such as Crestor, Lipitor has been found to be equally effective in reducing LDL cholesterol levels, but may have a higher risk of certain side effects, such as muscle pain and weakness [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=56&contentid=2967
[3] https://www.singlecare.com/blog/crestor-vs-lipitor/