Lipitor is a brand name for the drug atorvastatin, which is a type of medication used to lower cholesterol levels in the blood [2]. According to the drug patent watch, atorvastatin was approved by the FDA in 1996 and is currently available in generic form [1].

As for the impact of a vegan diet on Lipitor side effects, the sources do not provide a direct answer. However, the medicalnewstoday article states that atorvastatin may cause side effects such as muscle pain, weakness, and liver problems [2]. In contrast, a vegan diet may help reduce the risk of developing cardiovascular diseases, which are often treated with Lipitor [3].

Moreover, a study published in the National Center for Biotechnology Information found that a vegan diet can help improve lipid levels in the blood, which could potentially reduce the need for cholesterol-lowering medications like Lipitor [3]. However, it is important to note that this study did not specifically address the impact of a vegan diet on Lipitor side effects.

In conclusion, while a vegan diet may have positive effects on cholesterol levels and cardiovascular health, there is no clear evidence to suggest that it directly impacts Lipitor side effects. Patients taking Lipitor should always consult with their healthcare provider before making any changes to their diet or medication regimen [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/atorvastatin-oral-tablet
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3662288/