Lipitor is a brand name for the drug atorvastatin, which is a type of statin used to lower cholesterol levels in the body. According to the sources provided, the time it takes to adjust to Lipitor may vary from person to person.

Drugpatentwatch [1] explains that Lipitor is usually taken once a day and can take up to two weeks to start showing significant effects. However, it may take up to four weeks for the full benefits of the medication to be realized. It is important to continue taking Lipitor as prescribed, even if you do not notice any immediate changes.

Drugwatch [2] notes that some people may experience side effects when they first start taking Lipitor. These side effects can include muscle pain, weakness, and tenderness, as well as stomach pain, nausea, and diarrhea. These side effects usually go away on their own as the body adjusts to the medication. However, if they persist or become severe, it is important to speak with a healthcare provider.

British Heart Foundation [3] also suggests that the side effects of Lipitor are generally mild and temporary, and should go away within a few weeks of starting the medication. The organization advises that if side effects persist or become bothersome, individuals should speak with their doctor.

In conclusion, the time it takes to adjust to Lipitor can vary from person to person. While some people may start to see results within two weeks, it may take up to four weeks for the full benefits of the medication to be realized. Some people may also experience mild side effects when they first start taking Lipitor, but these usually go away on their own within a few weeks. If side effects persist or become severe, it is important to speak with a healthcare provider.

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