Lipitor is a medication used to treat high cholesterol levels in the blood. It works by reducing the production of cholesterol in the liver [1]. According to the sources provided, there are no known interactions between Lipitor and lactose-free milk.

Lactose-free milk is regular milk that has had the lactose removed. It is a good source of calcium, vitamin D, and other nutrients [2]. Vitamin D is important for bone health and immune function [2]. However, it is important to note that taking high doses of vitamin D supplements while taking Lipitor can increase the risk of muscle pain and weakness [2][3].

It is always important to talk to a healthcare provider or pharmacist before taking any new medications or supplements, as well as before making any changes to your diet. They can provide personalized advice based on your individual health needs and medications [3].

In conclusion, there are no known interactions between Lipitor and lactose-free milk. However, taking high doses of vitamin D supplements while taking Lipitor can increase the risk of muscle pain and weakness. It is important to talk to a healthcare provider or pharmacist before taking any new medications or supplements, as well as before making any changes to your diet.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/
[3] https://www.pharmacytimes.com/view/5-dangerous-food-drug-interactions