Lipitor is a brand name for the drug atorvastatin, which belongs to a class of drugs called statins. Statins work by blocking an enzyme called HMG-CoA reductase, which is responsible for producing cholesterol in the liver [1]. By inhibiting this enzyme, Lipitor reduces the amount of cholesterol produced by the liver and increases the liver's ability to remove cholesterol from the bloodstream [3].

While Lipitor is primarily used to lower cholesterol levels, it has also been shown to have a secondary effect on blood pressure. According to a press release by Pfizer, a study found that adding Lipitor to an effective blood pressure treatment provided a significant reduction in heart attacks or deaths from heart attacks over five years [2]. This suggests that Lipitor may have a protective effect on the heart and blood vessels beyond its cholesterol-lowering properties.

However, it is important to note that Lipitor can also have side effects, including muscle pain, liver damage, and an increased risk of developing type 2 diabetes [3]. As with any medication, it is important to weigh the potential benefits against the risks and to consult with a healthcare provider before starting treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.pfizer.com/news/press-release/press-release-detail/adding_lipitor_early_to_effective_blood_pressure_treatment_provided_a_significant_reduction_in_heart_attacks_or_deaths_from_heart_attacks_over_five_years
[3] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects