Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood [1]. While it is not typically used to treat high blood pressure, a study conducted by Pfizer found that adding Lipitor to an effective blood pressure treatment can provide a significant reduction in heart attacks or deaths from heart attacks over five years [2]. It is important to note that Lipitor may cause side effects, including muscle pain, weakness, and liver damage, and should only be taken under the guidance of a healthcare professional [3]. In summary, Lipitor is primarily used to lower cholesterol levels and is not typically used to treat high blood pressure, but it may be beneficial when added to an effective blood pressure treatment to reduce the risk of heart attacks or deaths from heart attacks. As with any medication, it is important to be aware of potential side effects and to consult with a healthcare professional before taking Lipitor.

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