Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [1]. While it is not directly related to blood pressure medication, it is important to consider its potential side effects when taking it in combination with other medications. According to Medical News Today, some common side effects of Lipitor include muscle pain, weakness, and tenderness, which may be more likely to occur when taking it in combination with certain blood pressure medications [2]. However, Healthline notes that while Lipitor may interact with some blood pressure medications, such as amlodipine, it does not typically increase or decrease the side effects of these medications [3]. It is important to speak with a healthcare provider about any potential interactions or side effects when taking multiple medications.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://www.healthline.com/health/drugs/lipitor