According to the sources provided, there is no known interaction between Lipitor (atorvastatin) and potassium-based salt substitutes. However, it is important to note that potassium supplements, which are different from salt substitutes, can interact with Lipitor and should be used with caution.

Lipitor is a medication used to lower cholesterol levels in the blood. It works by inhibiting an enzyme in the liver that is responsible for producing cholesterol. [1]

Potassium-based salt substitutes are commonly used by people who are trying to reduce their sodium intake. These substitutes contain potassium chloride instead of sodium chloride. [2]

According to the sources, there is no known interaction between Lipitor and potassium-based salt substitutes. However, it is important to note that potassium supplements can interact with Lipitor. Potassium supplements can increase the risk of muscle problems when taken with Lipitor. [3]

In conclusion, there is no known interaction between Lipitor and potassium-based salt substitutes. However, caution should be exercised when taking potassium supplements with Lipitor. It is important to talk to a healthcare provider before taking any new medications or supplements.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.uspharmacist.com/article/drug-interactions-with-vitamins-and-minerals
[3] https://www.stlukes-stl.com/health-content/medicine/33/000975.htm