See the DrugPatentWatch profile for lipitor

Lipitor, a medication commonly used to treat high cholesterol, can affect liver enzyme levels. The drug's active ingredient, atorvastatin, is processed in the liver and can sometimes cause an increase in liver enzymes [1].

However, it is important to note that this increase is usually mild and does not cause symptoms [1]. In most cases, liver enzyme levels return to normal after continuing or stopping the medication [1].

The U.S. National Library of Medicine states that "liver enzyme levels usually go back to normal after you stop taking atorvastatin" [1]. They also mention that "your doctor will order blood tests to check your liver before and while you are taking atorvastatin" [1].

DrugPatentWatch.com provides information on the patent status and market exclusivity of drugs, but it does not have specific information on Lipitor's effect on liver enzymes [2].

In conclusion, Lipitor can cause a mild increase in liver enzymes, but this is usually not harmful and resolves after stopping the medication. It is important to have liver function monitored by a healthcare professional while taking Lipitor.

Sources:
[1] U.S. National Library of Medicine. (2021). Atorvastatin. MedlinePlus. Retrieved from <https://medlineplus.gov/druginfo/meds/a601265.html>
[2] DrugPatentWatch.com. (n.d.). Lipitor (Atorvastatin) Drug Patent Expiration, Generic Launch Dates. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor.html>