There is limited research on which herbs can enhance the effectiveness of Lipitor, a medication used to lower cholesterol levels. Lipitor's active ingredient is atorvastatin, which works by blocking the production of cholesterol in the liver. However, some herbs may interact with Lipitor, potentially causing adverse effects or reducing its effectiveness.

According to the Drug Patent Watch database [1], there are no patents or drug interactions listed for atorvastatin and herbs. However, a study published in the Journal of Clinical Pharmacy and Therapeutics [2] suggests that garlic may have a modest cholesterol-lowering effect when used in combination with atorvastatin. The study found that taking garlic supplements along with atorvastatin for six months resulted in a greater reduction in LDL cholesterol levels than atorvastatin alone.

On the other hand, Ginkgo biloba, an herb commonly used for cognitive enhancement, may interact with Lipitor. According to the Mayo Clinic [3], ginkgo may increase the risk of bleeding when taken with blood-thinning medications, including atorvastatin. Therefore, it is recommended to avoid using ginkgo with Lipitor.

In conclusion, while there is limited research on the use of herbs to enhance Lipitor's effectiveness, garlic may have a modest cholesterol-lowering effect when used in combination with atorvastatin. However, it is important to consult with a healthcare provider before taking any herbs or supplements, as they may interact with Lipitor or cause adverse effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4593660/
[3] https://www.mayoclinic.org/drugs-supplements-ginkgo/art-20362032