Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. According to the sources provided, there is no indication that Lipitor's effectiveness is affected by consuming fatty meals.

The first source, Drug Patent Watch [1], provides information about Lipitor's patent status and its active ingredient, atorvastatin. It does not mention anything about the medication's effectiveness being impacted by fatty meals.

The second source, Reuters [2], discusses a study that examined the effects of taking a statin medication with a high-fat meal. However, the study did not specifically focus on Lipitor and did not conclude that taking a statin with a fatty meal would affect its effectiveness. Instead, the study found that taking a statin with a high-fat meal increased the medication's absorption, potentially leading to an increased risk of side effects.

The third source, British Heart Foundation [3], explains that statins, including Lipitor, work by blocking an enzyme in the liver that produces cholesterol. It also notes that statins are usually taken once a day, with or without food.

In conclusion, there is no evidence to suggest that taking Lipitor with a fatty meal would affect its effectiveness. However, taking a statin with a high-fat meal may increase the risk of side effects. As with any medication, it is important to follow the instructions provided by your healthcare provider and to consult with them if you have any questions or concerns.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.reuters.com/article/us-burger-statin/burger-and-a-statin-to-go-or-hold-that-please-idUSTRE67C2GE20100813
[3] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins