Lipitor, also known as atorvastatin, 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]. According to a study published in the Journal of the American College of Cardiology, the effectiveness of Lipitor is not affected by dietary fat intake [2].

The study followed 62 participants with high cholesterol levels who were randomly assigned to either a low-fat or high-fat diet. The participants were then given Lipitor and their cholesterol levels were measured over a period of 12 weeks. The study found that both the low-fat and high-fat groups had similar reductions in cholesterol levels after taking Lipitor. Therefore, the study suggests that dietary fat intake does not affect the effectiveness of Lipitor in lowering cholesterol levels [2].

Another study published in the American Journal of Cardiology found that Lipitor can be effective in reducing cholesterol levels even in patients with high-fat diets. The study followed 136 patients with high cholesterol levels who were given Lipitor for six weeks. The study found that Lipitor was effective in reducing cholesterol levels in both patients with low-fat and high-fat diets [3].

In conclusion, 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. According to studies, the effectiveness of Lipitor is not affected by dietary fat intake. Therefore, Lipitor can be effective in reducing cholesterol levels even in patients with high-fat diets [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/21269482/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1312230/