According to the sources provided, monitoring liver function is important for patients taking Lipitor (atorvastatin), a cholesterol-lowering medication. The frequency of liver function monitoring can vary depending on several factors, including the patient's medical history and the dose of Lipitor they are taking.
The FDA Drug Safety Communication on cholesterol-lowering statin drugs, which includes Lipitor, states that liver function tests should be performed before starting treatment and as clinically indicated thereafter [3]. This suggests that liver function should be monitored at the beginning of treatment and regularly thereafter based on the patient's individual circumstances.
The drug patent information provided by DrugPatentWatch does not specifically mention the frequency of liver function monitoring for Lipitor [1]. However, it is important to note that liver function tests are commonly recommended for patients taking statin medications, including Lipitor, due to the potential risk of liver damage [2].
To determine the appropriate frequency of liver function monitoring, it is best to consult with a healthcare professional. They will consider the patient's medical history, any pre-existing liver conditions, and other medications the patient may be taking. Regular monitoring of liver function can help identify any potential liver-related side effects and ensure the safe use of Lipitor.
In conclusion, the provided sources indicate that liver function should be monitored before starting Lipitor treatment and as clinically indicated thereafter. It is important for patients to consult with their healthcare professional to determine the appropriate frequency of liver function monitoring based on their individual circumstances.
Sources:
[1] DrugPatentWatch. Lipitor. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] National Center for Biotechnology Information. Statins: Drug Class Review. Retrieved from https://www.ncbi.nlm.nih.gov/books/NBK430779/
[3] U.S. Food and Drug Administration. FDA Drug Safety Communication: Important safety label changes to cholesterol-lowering statin drugs. Retrieved from https://www.fda.gov/drugs/drug-safety-and-availability/fda-drug-safety-communication-important-safety-label-changes-cholesterol-lowering-statin-drugs