Lipitor is a brand name for atorvastatin, which is a medication used to lower cholesterol levels in the blood. The dosage of Lipitor is determined by a healthcare provider based on various factors such as age, medical history, and other medications the patient may be taking [2].

There is no evidence to suggest that herbal supplements can be used to adjust the dosage of Lipitor. In fact, it is important to consult with a healthcare provider before taking any herbal supplements as they may interact with Lipitor and cause harmful side effects [3].

According to the American Academy of Family Physicians, there are several potential drug interactions with Lipitor, including grapefruit juice, erythromycin, and clarithromycin [2]. The FDA also warns against the use of certain medications such as gemfibrozil and cyclosporine with Lipitor, as they can increase the risk of muscle damage [3].

In conclusion, it is important to follow the dosage instructions provided by a healthcare provider when taking Lipitor. Herbal supplements should not be used to adjust the dosage of Lipitor, as they may interact with the medication and cause harmful side effects. Patients should always consult with their healthcare provider before taking any new medications or supplements [2][3].

Sources:
[2] American Academy of Family Physicians. (2007). Management of Dyslipidemia. American Family Physician, 75(10), 1487-1492. https://www.aafp.org/pubs/afp/issues/2007/0515/p1487.html
[3] U.S. Food and Drug Administration. (2018). Lipitor (atorvastatin calcium) Tablets. https://www.fda.gov/media/155050/download