Lipitor is a brand name for the generic drug atorvastatin, which is a medication used to lower cholesterol levels in the blood. Atorvastatin works by blocking an enzyme in the liver that produces cholesterol, thus reducing the amount of cholesterol in the bloodstream [2]. However, it is important to note that atorvastatin is not vegan, as it contains lactose, which is derived from milk [1].

As for how atorvastatin affects vegan cholesterol levels, it can be assumed that it would have a similar effect as it would on non-vegan cholesterol levels. Studies have shown that atorvastatin can significantly lower LDL (bad) cholesterol levels and increase HDL (good) cholesterol levels in both men and women [2]. It is important to note that a vegan diet is already associated with lower cholesterol levels, as it is free of animal products which are typically high in cholesterol [3].

It is also important to consider the potential side effects of atorvastatin. The FDA warns that atorvastatin can cause serious muscle problems, liver problems, and an increased risk of diabetes [3]. Additionally, atorvastatin can interact with other medications, so it is important to inform your doctor of any other medications or supplements you are taking before starting atorvastatin [2].

In conclusion, atorvastatin (Lipitor) is a medication used to lower cholesterol levels in the blood, but it is not vegan due to the presence of lactose. It can significantly lower LDL cholesterol levels and increase HDL cholesterol levels, which could benefit vegan cholesterol levels. However, it is important to consider the potential side effects and interactions with other medications before starting atorvastatin.

Sources:
[1] DrugPatentWatch. Lipitor. https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] Medical News Today. Atorvastatin: Uses, dosage, side effects, and warnings. https://www.medicalnewstoday.com/articles/atorvastatin-oral-tablet
[3] FDA. Lipitor label. https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s057lbl.pdf