Lipitor is a statin drug used to lower cholesterol levels in the blood. It is effective in reducing low-density lipoprotein (LDL) cholesterol, also known as "bad" cholesterol, which is a type of saturated fat that can clog arteries and increase the risk of heart disease [2]. According to the sources provided, it is unclear how long it takes for Lipitor to reduce saturated fat levels specifically.

However, Lipitor's effectiveness in reducing cholesterol levels is well-established. According to the British Heart Foundation, statins like Lipitor can reduce cholesterol levels by up to 60% within a few weeks [2]. Healthline also notes that the drug can start to lower cholesterol levels within two weeks, with maximum effects seen within four to six weeks [3].

It is important to note that the time it takes for Lipitor to reduce cholesterol levels can vary depending on factors such as the dosage, individual response to the drug, and overall lifestyle habits [3]. It is also important to follow a healthy diet and exercise regimen in conjunction with taking Lipitor to achieve the best results [2].

In summary, while it is unclear how long it takes for Lipitor to specifically reduce saturated fat levels, it is an effective drug in reducing cholesterol levels within a few weeks of use. However, the time it takes for Lipitor to take effect can vary depending on individual factors. It is important to maintain a healthy lifestyle while taking Lipitor to achieve the best results.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins
[3] https://www.healthline.com/health/drugs/lipitor