Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol levels and reduce the risk of heart attack and stroke [2]. The dosage of Lipitor can be adjusted based on diet changes, but it is important to consult with a healthcare provider before making any changes to the medication regimen [3].

According to the drug patent watch website, the recommended starting dose of Lipitor is 10-20 mg once daily, and the maximum dose is 80 mg once daily [1]. However, the dosage may vary depending on individual factors such as age, gender, and other medical conditions.

Medscape indicates that the dose of Lipitor may need to be adjusted if a patient makes significant changes to their diet, particularly if they start a low-fat or low-cholesterol diet. In some cases, a lower dose of Lipitor may be necessary to avoid potential side effects [2].

The National Center for Biotechnology Information explains that Lipitor is metabolized by the liver and excreted through the bile. Changes in diet, particularly a low-fat diet, can reduce the amount of bile produced by the liver, which can decrease the amount of Lipitor excreted from the body. This can increase the risk of side effects, such as muscle pain and liver damage [3].

In summary, Lipitor dosage may need to be adjusted if a patient makes significant changes to their diet, particularly if they start a low-fat or low-cholesterol diet. It is important to consult with a healthcare provider before making any changes to the medication regimen. The recommended starting dose of Lipitor is 10-20 mg once daily, and the maximum dose is 80 mg once daily. However, the dosage may vary depending on individual factors such as age, gender, and other medical conditions [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446
[3] https://www.ncbi.nlm.nih.gov/books/NBK430779/