Lipitor, also known as atorvastatin, is a prescription medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], Lipitor is a statin drug that works by blocking an enzyme in the liver that produces cholesterol. However, there is no evidence to suggest that drinking beer reduces the effectiveness of Lipitor.

A study published in the National Center for Biotechnology Information [2] explains that alcohol consumption can increase the risk of liver damage when combined with statins. However, the study did not specifically mention beer as a factor. The study suggested that moderate alcohol consumption may not significantly affect the effectiveness of statins, but heavy alcohol consumption may increase the risk of liver damage.

A Harvard Health Publishing article [3] also mentions that moderate alcohol consumption may not have a significant impact on the effectiveness of statins. However, heavy alcohol consumption can lead to liver damage, which can affect the liver's ability to metabolize Lipitor.

In conclusion, there is no evidence to suggest that drinking beer reduces the effectiveness of Lipitor. However, heavy alcohol consumption can increase the risk of liver damage, which can affect the liver's ability to metabolize Lipitor. It is important to talk to a healthcare provider about any concerns regarding the use of Lipitor and alcohol consumption.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1767327/
[3] https://www.health.harvard.edu/newsletter_article/do-alcohol-and-statins-mix