Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [1]. According to Drug Patent Watch, there are no known interactions between Lipitor and protein [1]. However, it is important to note that Lipitor can interact with certain foods and beverages, such as grapefruit juice, which can increase the risk of side effects [1].

A study published in the Journal of Clinical Medicine Research investigated the effects of protein supplementation on atorvastatin-induced myopathy, which is a rare side effect of the medication that can cause muscle pain and weakness [2]. The study found that protein supplementation did not worsen atorvastatin-induced myopathy and may even have a protective effect [2]. However, the study was limited by its small sample size and short duration [2].

Another study published in the Journal of Pharmaceutical Analysis investigated the effects of protein binding on atorvastatin in the blood [3]. The study found that atorvastatin was highly bound to protein in the blood, which could affect its distribution and elimination from the body [3]. However, the study did not investigate any potential interactions between protein intake and atorvastatin efficacy or side effects [3].

In conclusion, there are no known interactions between Lipitor and protein, according to Drug Patent Watch [1]. However, further research is needed to investigate the effects of protein intake on atorvastatin-induced myopathy and the protein binding of atorvastatin in the blood [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6661989/
[3] https://pubmed.ncbi.nlm.nih.gov/35603682/