Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood and reduce the risk of heart disease [2]. According to the American Academy of Family Physicians, the dosage of Lipitor should be adjusted based on the patient's response to the medication and their risk factors for heart disease [3]. The initial dose of Lipitor is usually 10-20 mg once daily, and the maximum recommended dose is 80 mg per day [2].

The dosage of Lipitor may need to be adjusted based on the patient's age, gender, weight, and other medical conditions they may have. For example, patients with liver disease may need a lower dose of Lipitor, while older patients may require a lower starting dose due to their increased risk of side effects [3].

It is important to note that the dosage of Lipitor should only be adjusted under the supervision of a healthcare provider. Patients should not change their dosage or stop taking Lipitor without first consulting with their doctor [2].

In conclusion, the dosage of Lipitor should be adjusted based on the patient's response to the medication and their risk factors for heart disease. The initial dose is usually 10-20 mg once daily, and the maximum recommended dose is 80 mg per day. The dosage may need to be adjusted based on the patient's age, gender, weight, and other medical conditions they may have. Patients should not change their dosage or stop taking Lipitor without first consulting with their doctor [2][3].

Sources:
[2] Medscape - Atorvastatin (Lipitor)
[3] American Academy of Family Physicians - Atorvastatin (Lipitor)