Lipitor is a brand name for the drug atorvastatin, which is a type of medication known as a statin. Statins are commonly used to lower cholesterol levels in the blood, which can reduce the risk of heart disease and stroke. The recommended dosage of Lipitor can vary depending on the individual's health and medical history.

According to the first source [1], the patent for Lipitor expired in 2011, which means that other companies can now produce generic versions of the drug. This has led to a decrease in the cost of Lipitor and increased accessibility to the medication.

The second source [2] explains that statins like Lipitor are generally safe and effective for reducing cholesterol levels. However, some people may experience side effects such as muscle pain, liver damage, and digestive issues. It is important to discuss any concerns or questions about Lipitor dosage with a healthcare provider.

The third source [3] provides information on the potential side effects of atorvastatin, including headache, nausea, diarrhea, and muscle pain. It also notes that the dosage of Lipitor may need to be adjusted based on the individual's response to the medication and any other health conditions they may have.

In conclusion, Lipitor is a commonly prescribed medication for lowering cholesterol levels, and its recommended dosage can vary depending on the individual's health and medical history. While statins like Lipitor are generally safe and effective, it is important to discuss any concerns or questions about dosage with a healthcare provider. Additionally, individuals should be aware of the potential side effects of atorvastatin and report any unusual symptoms to their healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins
[3] https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067003?p=1