Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. The dosage of Lipitor prescribed can vary depending on the patient's medical history and condition.

According to the FDA label [2], the recommended starting dose of Lipitor for adults is 10-20 mg once daily. The dosage may be adjusted based on the patient's response to the medication and their individual needs, with a maximum recommended dose of 80 mg per day.

The Medscape reference [3] suggests that the dosage may also be based on the patient's risk of cardiovascular disease. Patients with a higher risk may require a higher dosage of Lipitor. Additionally, the reference notes that the dosage may need to be adjusted in patients with certain medical conditions, such as liver disease or kidney disease.

Drug Patent Watch [1] provides information on the various strengths of Lipitor available, ranging from 10 mg to 80 mg tablets.

It is important for patients to follow their healthcare provider's instructions regarding the dosage of Lipitor prescribed. Patients should not change their dosage or stop taking the medication without consulting their healthcare provider first.

Overall, the recommended dosage of Lipitor can vary based on the patient's individual needs and medical history. Patients should work closely with their healthcare provider to determine the appropriate dosage for their specific situation.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/020702s067s069lbl.pdf
[3] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446