See the DrugPatentWatch profile for lipitor

The typical cholesterol decrease associated with Lipitor (atorvastatin) usage varies depending on the individual's initial cholesterol levels and other factors. However, clinical studies have provided some insight into the drug's effectiveness.

According to the Lipitor website, clinical trials have shown that Lipitor can lower LDL (or "bad") cholesterol by 30-60% in patients with high cholesterol levels [1]. Moreover, a study published in the American Journal of Cardiology found that, on average, Lipitor reduced LDL cholesterol by 43% in patients with a baseline LDL cholesterol level of 150-190 mg/dL [2].

It is important to note that Lipitor's effectiveness can be influenced by various factors, such as the patient's diet, lifestyle, and adherence to the medication regimen [3]. Therefore, it is essential to consult with a healthcare provider to determine the appropriate dosage and treatment plan.

In summary, Lipitor has been shown to decrease LDL cholesterol levels by 30-60% in patients with high cholesterol, with an average reduction of 43% in patients with a baseline LDL cholesterol level of 150-190 mg/dL.

Sources:
[1] <https://www.lipitor.com/about-lipitor/how-lipitor-works>
[2] <https://www.ncbi.nlm.nih.gov/pubmed/12537932>
[3] <https://www.drugpatentwatch.com/drugs/lipitor>