Lipitor is a medication used to lower cholesterol levels in the body. According to the sources provided, the recommended dosage of Lipitor is typically once a day, preferably at the same time each day [2]. The dosage may vary depending on individual patient needs, and it is important to follow the instructions provided by the prescribing physician [3].

Lipitor is available in both brand name and generic form. While the active ingredient is the same, there may be slight differences in the inactive ingredients used in the generic version [1]. However, the FDA requires that generic medications be equivalent to their brand-name counterparts in terms of safety, efficacy, and quality [3]. Therefore, it is generally safe to switch from brand-name Lipitor to a generic version, as long as the patient is monitored by their healthcare provider [3].

It is important to note that taking Lipitor alone is not sufficient to lower cholesterol levels. A healthy diet and regular exercise are also important components of cholesterol management [2]. Patients taking Lipitor should also be monitored regularly by their healthcare provider to ensure that the medication is effective and to check for any potential side effects [2].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2686951/
[3] https://www.health.harvard.edu/blog/switching-to-generic-lipitor-201202064195