Lipitor is a medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], the recommended starting dose of Lipitor is 10-20 mg per day, with the maximum dose being 80 mg per day. The dosage may be adjusted based on the individual's response to the medication and other factors such as age and health issues.

A study published in the National Library of Medicine [2] suggests that older patients may require lower doses of statins, including Lipitor, due to changes in their liver and kidney function. The study recommends that the dosage of statins be adjusted based on the individual's age, weight, and kidney function.

The Mayo Clinic [3] lists several factors that may affect the dosage of Lipitor, including age, liver and kidney function, and other health conditions such as diabetes and thyroid disorders. The article recommends that individuals work closely with their healthcare provider to determine the appropriate dosage of Lipitor based on their individual needs and health status.

In conclusion, while the recommended starting dose of Lipitor is 10-20 mg per day, the dosage may be adjusted based on the individual's response to the medication and other factors such as age and health issues. Older patients may require lower doses of statins, including Lipitor, due to changes in their liver and kidney function. It is important for individuals to work closely with their healthcare provider to determine the appropriate dosage of Lipitor based on their individual needs and health status.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915405/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013