Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. According to the sources provided, there is no information suggesting that the dosage of Lipitor is adjusted to prevent side effects.

The first source [1] is a database that provides information about drug patents and their expiration dates. It does not provide information about dosage adjustments for Lipitor.

The second source [2] is a medical reference website that provides information about drugs and their uses. It does not mention any dosage adjustments for Lipitor to prevent side effects.

The third source [3] is a research article that discusses the use of atorvastatin (Lipitor) in patients with chronic kidney disease. While the article mentions the importance of monitoring patients for potential side effects, it does not discuss any specific dosage adjustments to prevent side effects.

In summary, based on the sources provided, there is no information suggesting that the dosage of Lipitor is adjusted to prevent side effects. However, it is important for patients taking Lipitor to be aware of potential side effects and to discuss any concerns with their healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://reference.medscape.com/drug/lipitor-atorvaliq-atorvastatin-342446
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915405/