Lipitor is a medication used to lower cholesterol levels in the body, and it is also known as atorvastatin [1]. According to the American Academy of Family Physicians (AAFP), there is no specific dosage adjustment for Lipitor based on age [2]. However, dosage adjustments may be necessary based on other factors such as the patient's medical history, the presence of other medical conditions, and other medications being taken by the patient [2]. The FDA-approved label for Lipitor does not mention any age-based dosage adjustments either [3]. It is important to note that any changes to Lipitor dosage should only be made under the supervision of a healthcare professional [2].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.aafp.org/pubs/afp/issues/2007/0515/p1487.html
[3] https://www.fda.gov/media/155050/download