Adjusting the dosage of Lipitor, a commonly prescribed medication for lowering cholesterol, can potentially lead to side effects. Lipitor (atorvastatin) is known to cause side effects such as muscle pain, weakness, and liver problems. Changing the dosage of Lipitor should be done under the guidance of a healthcare provider to minimize the risk of side effects and ensure the medication's effectiveness. It is important to discuss any concerns or potential side effects with a healthcare professional before making any adjustments to the dosage of Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.rxlist.com/lipitor-drug.htm
[3] https://www.drugs.com/dosage/lipitor.html