Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels and reduce the risk of heart disease and stroke. According to Drug Patent Watch [1], Lipitor's primary mechanism of action is to inhibit the production of cholesterol in the liver, which leads to a decrease in blood cholesterol levels. However, it is unclear whether Lipitor impacts lactation quality.

Red yeast rice, a dietary supplement, contains a natural statin called monacolin K, which is chemically similar to the active ingredient in Lipitor. According to Mayo Clinic [2], red yeast rice has been used as an alternative to prescription statins to lower cholesterol levels. However, there is limited research on the safety and efficacy of red yeast rice, and it is not recommended for use during pregnancy or lactation.

A recent study published in the Journal of Human Lactation [3] investigated the impact of atorvastatin on lactation in women with hyperlipidemia. The study found that atorvastatin did not significantly affect milk production, milk composition, or infant growth and development. However, the study only included a small sample size, and further research is needed to confirm these findings.

In conclusion, while Lipitor is known to lower cholesterol levels, it is unclear whether it impacts lactation quality. Red yeast rice, a natural statin, is not recommended for use during lactation due to limited research on its safety and efficacy. A recent study found that atorvastatin did not significantly affect lactation in women with hyperlipidemia, but further research is needed to confirm these findings.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/drugs-supplements-red-yeast-rice/art-20363074
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227120/