Lipitor is a prescription drug that is used to lower cholesterol levels in the body. Taking Lipitor at different times may affect its effectiveness. According to Drug Patent Watch [1], Lipitor is best taken at night because the body produces more cholesterol during this time. Taking Lipitor at night can help to reduce the production of cholesterol in the body, leading to better results.

The British Heart Foundation [2] explains that statins, including Lipitor, are usually taken once a day, preferably at the same time each day. This helps to maintain a consistent level of the drug in the body, which is important for its effectiveness. Taking Lipitor at different times may cause fluctuations in the drug levels, which can affect its ability to lower cholesterol.

Medical News Today [3] adds that taking Lipitor with food can also affect its absorption and effectiveness. It is recommended to take Lipitor on an empty stomach, either an hour before or two hours after a meal.

In conclusion, taking Lipitor at different times can affect its effectiveness in lowering cholesterol levels. It is best to take Lipitor at night and at the same time each day on an empty stomach to maintain a consistent level of the drug in the body and achieve optimal results.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins
[3] https://www.medicalnewstoday.com/articles/325047