Lipitor is a medication used to lower cholesterol levels in the body. According to the drug patent watch website [1], Lipitor is a widely prescribed medication with over 100 million prescriptions written since its introduction to the market. However, one of the possible side effects of Lipitor is night sweats. According to GoodRx [2], excessive sweating is a known side effect of Lipitor. Night sweats, in particular, are listed as a less common side effect, affecting less than 1% of people who take Lipitor. However, it is essential to note that side effects can vary from person to person, and some people may experience night sweats while taking Lipitor.

High cholesterol levels are also known to cause night sweats [3]. Therefore, it can be challenging to determine whether night sweats are a side effect of Lipitor or a symptom of high cholesterol levels. It is crucial to consult a healthcare professional if you experience night sweats while taking Lipitor or have any concerns about your medication's side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/drugs/side-effects/medications-cause-excessive-sweating-side-effect
[3] https://wickedsheets.com/night-sweats/high-cholesterol-and-night-sweats-wicked-sheets/