Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood and reduce the risk of heart attack and stroke. According to the sources provided, there is no specific recommended dosage of Lipitor for liver diseases. However, the dosage may need to be adjusted based on the severity of liver disease and the patient's response to the medication.

The drug patent watch [1] provides information about the dosages available for Lipitor, which range from 10mg to 80mg. The dosage may be adjusted based on the patient's cholesterol levels and response to treatment.

The book "LiverTox: Clinical and Research Information on Drug-Induced Liver Injury" [2] states that Lipitor is generally safe for patients with liver disease, but caution should be taken in patients with severe liver disease or a history of liver disease. The book recommends monitoring liver function tests regularly in these patients.

Medscape [3] also recommends monitoring liver function tests in patients taking Lipitor, especially those with pre-existing liver disease or who consume alcohol regularly. The recommended starting dose of Lipitor is 10mg or 20mg, depending on the patient's cholesterol levels and other risk factors.

In conclusion, there is no specific recommended dosage of Lipitor for liver diseases. The dosage may need to be adjusted based on the patient's response to treatment and the severity of liver disease. Patients with liver disease should be monitored regularly for any signs of liver damage while taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/books/NBK548236/
[3] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446