According to the sources provided, there is a potential interaction between Lipitor (atorvastatin) and vitamin E. However, the extent and significance of this interaction is not clear.

The first source [1] provides information on the drug Lipitor, including its active ingredient, dosage forms, and patent information. This source does not provide any information on the interaction between Lipitor and vitamin E.

The second source [2] is a research article that discusses the potential benefits and risks of taking vitamin E supplements. The article mentions that vitamin E may interact with certain medications, including statins like Lipitor, but does not provide any specific details on the nature of this interaction.

The third source [3] is a drug interaction checker that allows users to check for potential interactions between drugs and supplements. According to this source, there is a moderate interaction between Lipitor and vitamin E, which may increase the risk of bleeding. However, the source notes that the significance of this interaction is not well established and may depend on individual factors such as dosage and duration of use.

In summary, while there is a potential interaction between Lipitor and vitamin E, the extent and significance of this interaction is not clear. Patients taking Lipitor and vitamin E should consult with their healthcare provider to determine if any precautions or adjustments to their treatment plan are necessary.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3047274/
[3] https://www.drugs.com/drug-interactions/lipitor-with-vitamin-e-276-128-2306-0.html