See the DrugPatentWatch profile for lipitor

Lipitor, a medication used to treat high cholesterol, is affected by several factors that can influence its duration in the body. These factors include:

1. Dosage: The duration of Lipitor in the body can be affected by the dosage taken. Higher doses can remain in the body for a longer period than lower doses.

2. Renal Function: Lipitor is primarily eliminated through the liver, but a small amount is excreted through the kidneys. Therefore, patients with impaired kidney function may experience an extended duration of Lipitor in their system.

3. Hepatic Function: Lipitor is metabolized in the liver, so patients with liver disease or impaired liver function may experience altered drug levels and duration.

4. Age: Age can affect the duration of Lipitor in the body. Older adults may have a longer duration of the drug due to decreased kidney and liver function.

5. Genetics: Certain genetic factors can affect how quickly the body metabolizes Lipitor, leading to variations in the duration of the drug in the body.

It is important to note that Lipitor has a patent expiration date of November 30, 2011, and generic versions of the drug are available on the market. This information was obtained from DrugPatentWatch.com.

Sources:

1. DrugPatentWatch.com. (n.d.). Lipitor. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>