Lipitor (atorvastatin) is a medication that is commonly used to lower cholesterol levels in the body. The appropriate dosage of Lipitor can vary depending on a variety of factors, including age.

According to DrugPatentWatch [1], the recommended starting dose of Lipitor for most adults is 10 mg once daily. However, the dosage may need to be adjusted based on individual patient factors, including age.

A study published in the Journal of the American Geriatrics Society [2] found that older adults may require lower doses of atorvastatin to achieve the same cholesterol-lowering effects as younger adults. The study concluded that a lower starting dose of 5 mg daily may be appropriate for older adults, with dosage adjustments made based on individual response.

Additionally, a review article published in American Family Physician [3] notes that older adults may be more susceptible to side effects from statin medications like Lipitor, such as muscle pain and weakness. As a result, dosage adjustments may be necessary to minimize the risk of these side effects.

In summary, age can be a factor in determining the appropriate dosage of Lipitor. While the recommended starting dose for most adults is 10 mg daily, older adults may require lower doses to achieve the same cholesterol-lowering effects and to minimize the risk of side effects. Dosage adjustments should be made based on individual patient factors and response.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915405/
[3] https://www.aafp.org/pubs/afp/issues/2007/0515/p1487.html