Based on the information provided, I was unable to find a direct answer to how long it takes for Lipitor to reduce stretching frequency. However, I can provide some context about Lipitor and its uses.

Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol and reduce the risk of stroke and heart attack [1]. It belongs to a class of drugs called statins, which work by blocking an enzyme in the liver that is needed to make cholesterol [1]. By lowering cholesterol levels, Lipitor can help prevent plaque buildup in the arteries, reducing the risk of heart disease and stroke.

While Lipitor is not typically associated with reducing stretching frequency, it is possible that the medication may have indirect effects on joint health due to its ability to reduce inflammation in the body [2]. However, it is important to note that Lipitor is not a first-line treatment for joint-related conditions, and its use for this purpose should be discussed with a healthcare provider.

In summary, while there is no direct evidence to suggest that Lipitor reduces stretching frequency, it is a medication used to treat high cholesterol and reduce the risk of heart disease and stroke. Its potential indirect effects on joint health should be discussed with a healthcare provider.

Sources:

1. Mayo Clinic. (2021). Atorvastatin (Oral Route). Retrieved from <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/description/drg-20065039>
2. National Center for Biotechnology Information. (2018). The role of statins in the management of osteoarthritis: A systematic review. Retrieved from <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6055533/>
3. DrugPatentWatch. (n.d.). Lipitor (Atorvastatin) Drug Profile. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>