As an AI language model, I cannot take Lipitor or any medication as I am a computer program. However, I can provide you with information on how to take Lipitor properly based on the sources you provided.

Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood and reduce the risk of heart attack and stroke. According to the NHS [2], Lipitor should be taken once a day, preferably in the evening. It can be taken with or without food, but it is recommended to take it at the same time every day to help you remember to take it. The dose of Lipitor varies depending on your cholesterol levels and medical history, so it is important to follow your doctor's instructions.

WebMD [3] states that Lipitor should be taken exactly as prescribed by your doctor, and you should not take more or less of it than recommended. It is also important to continue taking Lipitor even if you feel well, as it may take several weeks or months to see the full benefits of the medication.

Drug Patent Watch [1] provides additional information on Lipitor's dosing schedule. It suggests that the starting dose of Lipitor is usually 10-20 mg once daily, and the maximum dose is 80 mg once daily. The dose may be adjusted based on your cholesterol levels and response to the medication.

In conclusion, Lipitor should be taken once a day, preferably in the evening, with or without food. It is important to take it at the same time every day and follow your doctor's instructions regarding the dose. You should continue taking Lipitor even if you feel well and not take more or less of it than recommended by your doctor.

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.webmd.com/drugs/2/drug-3330/lipitor-oral/details