Lipitor is a prescription medication used to lower cholesterol levels in the blood. The active ingredient in Lipitor is atorvastatin calcium. According to the drug patent watch [1], Lipitor was first approved by the FDA in 1996 and has been available in the United States since then. The absorption of Lipitor can be influenced by various factors, such as food intake, age, and health status.

The absorption of Lipitor can be improved by taking it with food, as recommended by the FDA [3]. The label states that Lipitor can be taken with or without food, but taking it with food can increase the absorption of the medication. Additionally, the absorption of Lipitor can be affected by age and health status. Elderly patients and patients with liver disease may have a slower rate of drug metabolism, which can affect the absorption of the medication [2].

In conclusion, the absorption of Lipitor can be improved by taking it with food. However, the rate of absorption can also be influenced by age and health status. It is important to follow the instructions provided by the prescribing healthcare provider and to inform them of any health conditions or medications that may affect the absorption of Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/books/NBK430779/
[3] https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s057lbl.pdf