Lipitor (atorvastatin) is a widely prescribed medication used to lower cholesterol levels in the body. It belongs to the class of drugs known as statins, which work by inhibiting the production of cholesterol in the liver [3].

The recommended starting dose of Lipitor is usually 10-20 mg/day, which can be increased to a maximum of 80 mg/day [3]. However, the dosage of Lipitor may vary depending on several factors, such as the patient's age, sex, medical history, and other medications they are taking [2].

According to Drug Patent Watch [1], Lipitor is available in several strengths, including 10 mg, 20 mg, 40 mg, and 80 mg tablets. The recommended dosage of Lipitor depends on the patient's cholesterol levels, the presence of other risk factors for heart disease, and the patient's response to the medication.

A study published in the National Center for Biotechnology Information [2] examined the effects of high-dose atorvastatin therapy (80 mg/day) on patients with acute coronary syndrome. The study found that high-dose atorvastatin therapy was associated with a significant reduction in major cardiovascular events, including heart attack, stroke, and death. However, the study also noted that high-dose atorvastatin therapy was associated with an increased risk of side effects, such as liver damage and muscle pain.

It is important to note that the dosage of Lipitor should only be increased under the supervision of a healthcare provider. Patients should not increase their dosage of Lipitor without consulting their doctor first. Additionally, patients should report any side effects they experience while taking Lipitor to their healthcare provider immediately [3].

In conclusion, Lipitor is a medication used to lower cholesterol levels in the body. The recommended starting dose is usually 10-20 mg/day, which can be increased to a maximum of 80 mg/day. However, the dosage of Lipitor may vary depending on several factors, and patients should only increase their dosage under the supervision of a healthcare provider. High-dose atorvastatin therapy has been shown to be effective in reducing major cardiovascular events, but it is also associated with an increased risk of side effects. Patients should report any side effects they experience while taking Lipitor to their healthcare provider immediately.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4354082/
[3] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446