Lipitor, a medication used to treat high cholesterol, does not directly affect lactose intolerance. Lactose intolerance is a digestive disorder caused by the inability to digest lactose, a sugar found in milk and dairy products, due to a lack of the enzyme lactase [1].

Lipitor, also known as atorvastatin, is a type of statin medication that works in the liver to lower levels of "bad" cholesterol and fats, and raise "good" cholesterol [2]. Its mechanism of action does not involve the digestion or absorption of lactose.

However, it is always important to consult with a healthcare provider or pharmacist regarding any potential interactions between medications and pre-existing conditions or dietary restrictions. They can provide personalized advice based on an individual's medical history and current medications.

Sources:
[1] Mayo Clinic. (2021). Lactose intolerance. <https://www.mayoclinic.org/diseases-conditions/lactose-intolerance/symptoms-causes/syc-20374232>
[2] DrugPatentWatch. (n.d.). Lipitor (Atorvastatin). <https://www.drugpatentwatch.com/drugs/lipitor>