Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. According to the National Health Service (NHS) [2], Lipitor should be taken once a day, preferably in the evening, with or without food. It is important to take the medication at the same time every day to ensure maximum effectiveness. However, the NHS does not provide specific instructions on how long after taking Lipitor one should eat.

The British Heart Foundation (BHF) [3] suggests that Lipitor can be taken with or without food, but recommends avoiding grapefruit juice as it can increase the level of the medication in the blood and increase the risk of side effects. The BHF also does not provide specific instructions on how long after taking Lipitor one should eat.

The Drug Patent Watch [1] provides information on the pharmacokinetics of atorvastatin, which indicates that the medication is rapidly absorbed after oral administration and reaches maximum concentration in the blood within 1-2 hours. However, the website does not provide specific instructions on how long after taking Lipitor one should eat.

In conclusion, while the sources provided do not offer specific guidance on how long after taking Lipitor one should eat, it is generally recommended to take the medication at the same time every day, preferably in the evening, with or without food. It is important to follow the instructions provided by your healthcare provider and to avoid grapefruit juice while taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.nhs.uk/medicines/atorvastatin/how-and-when-to-take-atorvastatin/
[3] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins