Lipitor (atorvastatin) is a medication that is commonly used to treat high cholesterol levels. As patients age, the dosage of Lipitor may need to be adjusted to account for changes in their health and metabolism.

According to Drug Patent Watch [1], the recommended starting dose of Lipitor for most patients is 10 mg per day. However, this dose may be adjusted based on a patient's age, health status, and other factors.

A study published in the Annals of Internal Medicine [3] found that older patients may benefit from lower doses of Lipitor. The study looked at data from over 8,000 patients who were prescribed atorvastatin and found that patients over the age of 65 who were taking high doses of the medication were more likely to experience adverse effects, such as muscle pain and weakness. The study recommended that older patients start with a lower dose of Lipitor and gradually increase the dose as needed.

Another study published in the Journal of the American Geriatrics Society [2] found that older patients may be more sensitive to the effects of Lipitor and may require lower doses to achieve the same cholesterol-lowering benefits as younger patients. The study recommended that older patients start with a lower dose of Lipitor and be monitored closely for adverse effects.

In summary, the recommended dosage of Lipitor for older patients may be lower than for younger patients. Starting with a lower dose and gradually increasing the dose as needed may help older patients avoid adverse effects while still achieving the desired cholesterol-lowering benefits. It is important for older patients to discuss their individual health status and medication needs with their healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915405/
[3] https://www.acpjournals.org/doi/10.7326/0003-4819-147-1-200707030-00002