Lipitor is a brand name for the drug atorvastatin, which is used to treat high cholesterol levels. According to DrugPatentWatch [1], there are no known interactions between Lipitor and blood pressure medications. However, it is important to note that the FDA [2] warns against consuming grapefruit or grapefruit juice while taking Lipitor, as it can increase the risk of side effects. Grapefruit contains compounds that can interfere with the enzymes that break down Lipitor in the body, leading to higher levels of the drug in the bloodstream. This can increase the risk of muscle pain and other side effects. The American College of Cardiology [3] recommends that patients taking Lipitor or other statins should be monitored for potential drug interactions and side effects, and that healthcare providers should consider adjusting the dosage or switching to a different medication if necessary.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.fda.gov/consumers/consumer-updates/grapefruit-juice-and-some-drugs-dont-mix
[3] https://www.acc.org/latest-in-cardiology/ten-points-to-remember/2016/10/20/21/53/recommendations-for-management-of-clinically-significant-drug