Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. The dosage of Lipitor may vary depending on the patient's condition, age, and other factors.

According to drugs.com [3], the recommended starting dose of Lipitor is 10 mg once a day for most patients. The dosage can be increased to a maximum of 80 mg per day for patients who require a higher dose. However, the dosage may be adjusted based on the patient's response to the medication and other factors.

Medscape [2] states that the dosage of Lipitor should be individualized based on the patient's baseline LDL-cholesterol levels, the goal of therapy, and the patient's response to the medication. The recommended dosage range for most patients is 10-80 mg once daily. Patients who require a larger reduction in LDL-cholesterol levels may require higher doses of Lipitor.

It is important to note that Lipitor may interact with other medications, and dosage adjustments may be necessary in patients taking certain medications. Patients should always consult with their healthcare provider before making any changes to their medication regimen.

In conclusion, the recommended starting dose of Lipitor is 10 mg once a day, with a maximum dosage of 80 mg per day for patients who require a higher dose. However, the dosage may be adjusted based on the patient's response to the medication and other factors. Patients should always consult with their healthcare provider before making any changes to their medication regimen.

Sources:
[2] Medscape - Lipitor (atorvastatin) dosing, indications, interactions, adverse effects, and more. Retrieved from https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446
[3] Drugs.com - Lipitor Dosage. Retrieved from https://www.drugs.com/dosage/lipitor.html