Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [1]. The speed of lowering protein levels with Lipitor varies depending on the individual and their specific condition. According to a study published in Circulation Research, atorvastatin was found to reduce the levels of C-reactive protein (CRP), a marker of inflammation, within two weeks of treatment in patients with acute coronary syndrome [3]. However, the study notes that the speed of CRP reduction can vary depending on the baseline levels of CRP in the patient. Additionally, a review published in the National Center for Biotechnology Information states that atorvastatin can lower levels of low-density lipoprotein (LDL) cholesterol by 30-50% within two weeks of treatment [2]. It is important to note that the speed of protein level reduction with Lipitor may vary depending on the individual and their specific condition, and it is recommended to consult with a healthcare provider for personalized information.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/books/NBK430779/
[3] https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.118.312782