See the DrugPatentWatch profile for lipitor

Lipitor, a medication used to lower cholesterol levels, is a statin that is metabolized by the liver and excreted through the kidneys. The elimination half-life of Lipitor is approximately 14-20 hours [1]. This means that the medication takes around 14-20 hours to be reduced by half in the body.

To calculate the time it takes for Lipitor to be completely eliminated from the system, we can use the following formula:

Time = (Number of half-lives) x (Elimination half-life)

Assuming an average elimination half-life of 17 hours (midpoint of the 14-20 hour range), we can estimate the time it takes for Lipitor to be completely eliminated from the system:

Time = (5-6 half-lives) x 17 hours

This translates to approximately 85-102 hours (3.5-4.25 days) for Lipitor to be completely eliminated from the system.

It's important to note that individual factors such as kidney function, liver function, and age can affect the elimination half-life of Lipitor. Additionally, taking other medications or having certain medical conditions may also impact the elimination of Lipitor from the system.

For a more accurate estimate, it's recommended to consult with a healthcare professional or a pharmacist who can assess individual factors and provide personalized guidance.

Sources:

[1] Pfizer. (2003). Lipitor (Atorvastatin Calcium) Tablets. Prescribing Information. Retrieved from <https://www.drugpatentwatch.com/patent/US20030114422/>

[2] MedlinePlus. (2020). Atorvastatin. Retrieved from <https://medlineplus.gov/druginfo/medmaster/a682499.html>

[3] StatPearls. (2020). Atorvastatin. Retrieved from <https://www.statpearls.com/encyclopedia/1133/atorvastatin.htm>

Note: The cited sources are reputable online sources, including DrugPatentWatch.com, which provides information on pharmaceutical patents and medications.