Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. There is no evidence to suggest that Lipitor interacts with guacamole, a dip made from mashed avocado. However, it is important to note that certain foods can interact with medications, including Lipitor. For example, grapefruit and grapefruit juice can increase the level of Lipitor in the blood, which can lead to side effects. It is recommended that patients taking Lipitor avoid consuming grapefruit and grapefruit juice. Additionally, some foods can interfere with the absorption of Lipitor, such as high-fat meals, which can reduce the effectiveness of the medication. Patients should follow the instructions of their healthcare provider and pharmacist regarding the proper administration of Lipitor and any dietary restrictions that may apply.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.tampabay.com/archive/2010/01/27/food-and-drug-interactions/
[3] https://www.statnews.com/2016/11/03/medications-food-drug-interactions/