Lipitor is a medication used to lower cholesterol levels in the blood. It belongs to a class of drugs called statins and is prescribed to patients with high cholesterol levels. The drug's active ingredient is atorvastatin, which works by blocking the enzyme that produces cholesterol in the liver [3].

According to the Mayo Clinic [2], some of the common side effects of Lipitor include muscle pain, weakness, and tenderness, which may occur when taking the medication at high doses. Other side effects include nausea, diarrhea, constipation, and stomach pain. Patients who experience these side effects should contact their healthcare provider for advice on how to manage them.

Drug Patent Watch [1] notes that Lipitor is available in several dosage strengths, including 10 mg, 20 mg, 40 mg, and 80 mg. The recommended starting dose for most patients is 10 mg per day, which can be increased to a maximum of 80 mg per day. Patients who are prescribed a higher dose of Lipitor may be at a greater risk of experiencing side effects.

It is important to note that changing the dosage of Lipitor can have an impact on a patient's cholesterol levels. WebMD [3] states that a higher dose of Lipitor may be necessary for patients with more severe cases of high cholesterol. However, patients should not change their dosage without consulting their healthcare provider.

In conclusion, Lipitor is an effective medication for managing high cholesterol levels, but it can cause side effects, particularly at higher doses. Patients who experience side effects should contact their healthcare provider for advice on how to manage them. Patients should not change their Lipitor dosage without consulting their healthcare provider [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details