Lipitor is a brand name for the drug atorvastatin, which is a type of medication used to lower cholesterol levels in the body. According to Drug Patent Watch [1], Lipitor works by blocking an enzyme that is responsible for producing cholesterol in the liver. This helps to reduce the amount of cholesterol that is circulating in the bloodstream.

Medical News Today [2] reports that Lipitor can cause side effects, such as muscle pain, weakness, and tenderness. It can also cause liver damage, which is why regular liver function tests are necessary for people taking this medication. However, the article does not mention any specific interactions between Lipitor and blood pressure medications.

The American Heart Association [3] states that combining drugs that lower blood pressure and cholesterol could be beneficial for preventing stroke. However, the article does not mention any specific interactions between Lipitor and blood pressure medications.

Overall, while Lipitor can cause side effects and regular monitoring is necessary, there is no clear evidence that it interacts negatively with blood pressure medications. As always, it is important to consult with a healthcare provider before starting any new medications or making changes to existing medication regimens.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://newsroom.heart.org/news/combining-drugs-that-lower-blood-pressure-and-cholesterol-could-do-more-to-prevent-stroke