Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the body [1]. According to the National Health Service (NHS), Lipitor can be taken at any time of the day, with or without food, but it is recommended to take it at the same time every day to help you remember to take it [3]. It is also important to follow the instructions given by your doctor or pharmacist regarding the dosage and duration of treatment.

While there is no specific time of day that is recommended for taking Lipitor, some studies suggest that taking it at night may be more effective. According to Drugs.com, taking Lipitor at night can lead to a greater reduction in LDL cholesterol levels compared to taking it in the morning [2]. However, it is important to note that this effect may vary from person to person and further research is needed to confirm these findings.

In conclusion, Lipitor can be taken at any time of the day, but it is recommended to take it at the same time every day to help you remember to take it. While taking it at night may be more effective in reducing cholesterol levels, it is important to follow the instructions given by your doctor or pharmacist regarding the dosage and duration of treatment [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/medical-answers/does-lipitor-work-better-if-you-take-it-at-night-416127/
[3] https://www.nhs.uk/medicines/atorvastatin/how-and-when-to-take-atorvastatin/