Lipitor is a medication used to lower cholesterol levels in the body. According to Drug Patent Watch [1], there is no specific time requirement for taking Lipitor after a high-fat meal. However, it is recommended to take Lipitor at the same time every day, with or without food.

A cardiologist's take on the keto diet from Penn Medicine [2] suggests that a high-fat diet can increase cholesterol levels in some people, which may require the use of cholesterol-lowering medications such as Lipitor. However, the article also notes that the keto diet may not be suitable for everyone and should be approached with caution.

The British Heart Foundation [3] provides information on statins, including Lipitor, and recommends taking them at the same time each day, preferably in the evening. However, the article does not mention any specific guidelines for taking Lipitor after a high-fat meal.

In summary, while there is no specific time requirement for taking Lipitor after a high-fat meal, it is recommended to take it at the same time every day, with or without food. It is important to follow the advice of a healthcare professional when taking cholesterol-lowering medications and to approach high-fat diets with caution.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.pennmedicine.org/news/news-blog/2019/april/a-cardiologists-take-on-the-keto-diet
[3] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins