Lipitor is a medication used to lower cholesterol levels in the blood and reduce the risk of heart attack, stroke, and other heart complications. According to the sources provided, there is no specific waiting period for Lipitor.

DrugPatentWatch [1] provides information on the patent and exclusivity status of Lipitor, but does not mention anything about a waiting period for the medication.

A study published in the National Center for Biotechnology Information [2] discusses the effectiveness of Lipitor in reducing the risk of cardiovascular disease, but also does not mention a waiting period.

The FDA label for Lipitor [3] provides detailed information on how to take the medication, including dosing instructions and potential side effects. However, it also does not mention a waiting period for Lipitor.

In summary, based on the sources provided, there is no specific waiting period for Lipitor. It is important to follow the dosing instructions provided by a healthcare professional and to discuss any concerns or questions about the medication with them.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6602299/
[3] https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/020702s073lbl.pdf