Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. The dosage of Lipitor varies depending on the patient's medical condition, age, and response to treatment.

According to Drugs.com [2], the recommended starting dose of Lipitor is 10-20 mg once daily, with or without food. The maximum dose is 80 mg once daily. The dose may be adjusted by a healthcare provider based on the patient's cholesterol levels and response to treatment.

Medscape [3] states that the usual starting dose of Lipitor is 10-20 mg once daily, with the maximum dose being 80 mg once daily. The recommended dosage for patients with homozygous familial hypercholesterolemia is 80 mg once daily.

DrugPatentWatch [1] provides information on the different formulations of Lipitor and their dosages. For example, the standard tablet form of Lipitor is available in dosages of 10 mg, 20 mg, 40 mg, and 80 mg. The oral solution form of Lipitor is available in a 10 mg per 1 mL strength.

It is important to note that Lipitor should be taken as directed by a healthcare provider. Patients should not adjust their dose or stop taking Lipitor without consulting their healthcare provider. Lipitor may cause side effects, such as muscle pain and weakness, liver problems, and an increased risk of diabetes. Patients should inform their healthcare provider of any side effects they experience while taking Lipitor.

In conclusion, the recommended dosage of Lipitor varies depending on the patient's medical condition and response to treatment. The usual starting dose is 10-20 mg once daily, with the maximum dose being 80 mg once daily. Patients should take Lipitor as directed by their healthcare provider and report any side effects they experience.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/dosage/lipitor.html
[3] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446