See the DrugPatentWatch profile for lipitor

Daytime drowsiness is not listed as a common side effect of regular Lipitor use, according to the information provided by Drugs.com [1]. Lipitor, a medication used to treat high cholesterol, can cause side effects such as diarrhea, upset stomach, muscle pain, and cold symptoms [1]. However, drowsiness is not mentioned among the potential side effects.

It is important to note that everyone's reaction to medication can vary, and some people may experience side effects not listed in the drug information [1]. If a person taking Lipitor experiences daytime drowsiness or any other unexpected symptoms, they should consult their healthcare provider.

In addition, DrugPatentWatch.com [2] provides information on the patent status of Lipitor, but it does not list side effects of the medication.

In conclusion, based on the information from Drugs.com, daytime drowsiness is not a common side effect of regular Lipitor use.

Sources:
[1] <https://www.drugs.com/lipitor.html>
[2] <https://www.drugpatentwatch.com/drugs/lipitor>