Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to the drug patent watch [1], the recommended dosage of Lipitor is 10-80 mg per day, depending on the patient's needs. It is usually taken once a day, with or without food, at any time of the day. It is important to take Lipitor regularly and at the same time each day to achieve the best results.

When taking Lipitor with blood pressure medication, it is important to follow the instructions provided by your healthcare provider. The Harvard Health Publishing [2] suggests that it may take several weeks or even months to see the full effects of a new medication, including Lipitor. It is important to continue taking the medication as prescribed, even if you do not notice any immediate changes.

According to the British Heart Foundation [3], statins such as Lipitor can interact with some blood pressure medications, such as amlodipine and diltiazem. It is important to inform your healthcare provider of all medications you are taking to avoid any potential drug interactions.

In conclusion, Lipitor is usually taken once a day, with or without food, at any time of the day. When taking Lipitor with blood pressure medication, it is important to follow the instructions provided by your healthcare provider. It may take several weeks or months to see the full effects of the medication, and it is important to continue taking it as prescribed. It is also important to inform your healthcare provider of all medications you are taking to avoid any potential drug interactions.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.health.harvard.edu/staying-healthy/when-to-expect-results-from-a-new-medication
[3] https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/drug-cabinet/statins