Based on the information provided, I found one source that could provide some insight into the relationship between Lipitor (Atorvastatin) and vegetarian iron absorption. However, it's important to note that Lipitor is a cholesterol-lowering medication, and its primary mechanism of action does not directly involve iron absorption.

According to DrugPatentWatch.com [1], there is no evidence or direct mention of Lipitor affecting vegetarian iron absorption in their database or in any clinical trials or studies. Lipitor is a statin drug that inhibits HMG-CoA reductase, an enzyme that plays a crucial role in the production of cholesterol in the body. It does not interact with iron metabolism or absorption pathways.

In summary, based on the available information from DrugPatentWatch.com [1], there is no evidence suggesting that Lipitor changes vegetarian iron absorption. However, if you have concerns about your iron levels or any potential interactions with medications, it is always best to consult with a healthcare professional.

Sources:
[1] DrugPatentWatch.com - Lipitor (Atorvastatin) - <https://www.drugpatentwatch.com/drugs/lipitor>