Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], Lipitor is a type of statin medication that works by inhibiting an enzyme in the liver that produces cholesterol. While it is primarily used to lower cholesterol, it may also have an effect on blood pressure.

One of the potential side effects of Lipitor is an increase in blood pressure, according to Medical News Today [2]. This is because the medication can cause constriction of blood vessels, which can lead to an increase in blood pressure. However, this side effect is relatively rare, and most people who take Lipitor do not experience any significant changes in blood pressure.

A study published in the Journal of Clinical Hypertension [3] found that while Lipitor did not have a significant effect on blood pressure in patients with normal blood pressure, it did lower blood pressure in patients with hypertension. The study found that patients who took Lipitor had a significant reduction in both systolic and diastolic blood pressure compared to those who took a placebo.

In conclusion, while Lipitor is primarily used to lower cholesterol levels, it may also have a positive effect on blood pressure in patients with hypertension. However, it is important to note that an increase in blood pressure is a potential side effect of the medication, although it is relatively rare. As with any medication, it is important to discuss the potential benefits and risks with a healthcare provider before starting treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://pubmed.ncbi.nlm.nih.gov/21881597/