Lower doses of Lipitor (atorvastatin) are generally considered safe and effective for patients with high cholesterol levels. The drug is used to lower cholesterol levels in the blood, which can help prevent heart attacks, strokes, and other cardiovascular diseases. According to Medscape, the usual starting dose of Lipitor is 10-20 mg per day, and the maximum recommended dose is 80 mg per day. However, the appropriate dose for each patient may vary depending on their individual needs and medical history. Patients should always follow their doctor's instructions and never adjust their dosage without consulting their healthcare provider.

DrugPatentWatch notes that the patent for Lipitor expired in 2011, which means that generic versions of the drug are now available. These generic versions may have different dosages and formulations than the brand-name drug, so patients should be aware of the specific dosage and instructions for their medication.

Drugs.com provides additional information on Lipitor dosages, including specific recommendations for patients with different medical conditions. For example, patients with homozygous familial hypercholesterolemia may require higher doses of Lipitor, while patients with liver disease may need lower doses. The website also notes that Lipitor can interact with other medications, so patients should inform their doctor of all the medications they are taking before starting Lipitor.

In summary, lower doses of Lipitor are generally safe and effective for patients with high cholesterol levels. However, the appropriate dosage for each patient may vary depending on their individual needs and medical history. Patients should always follow their doctor's instructions and never adjust their dosage without consulting 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.drugs.com/dosage/lipitor.html