Lipitor, or atorvastatin, is a medication used to lower cholesterol levels in the blood. The medication works by blocking an enzyme that produces cholesterol in the liver [1]. While it is generally safe to take atorvastatin, there may be some adverse effects when combined with certain herbs.

According to the National Health Service (NHS) [3], there are several herbs that can interact with atorvastatin, including St. John's wort, which is commonly used to treat depression, and grapefruit juice, which can increase the amount of atorvastatin in the blood and increase the risk of side effects. Other herbs that may interact with atorvastatin include garlic, ginseng, and red yeast rice.

A study published in the Journal of Pharmacy and Bioallied Sciences [2] found that the use of herbal supplements, including garlic and ginseng, can increase the risk of drug interactions with atorvastatin. The study recommends that patients taking atorvastatin should avoid using herbal supplements or should consult with their healthcare provider before taking them.

In conclusion, while atorvastatin is generally safe to take, it is important to be aware of potential interactions with certain herbs. Patients taking atorvastatin should avoid using St. John's wort and grapefruit juice, and should consult with their healthcare provider before taking any herbal supplements [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4593660/
[3] https://www.nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/