After conducting research based on the information provided, it appears that Lipitor, a medication used to treat high cholesterol, is not typically associated with drowsiness as a side effect. According to Drugs.com, the most common side effects of Lipitor include muscle pain, liver problems, and digestive issues [1]. Similarly, the Mayo Clinic does not list drowsiness as a potential side effect of Lipitor [2].

Furthermore, DrugPatentWatch.com, a website that provides information on drug patents and related news, does not mention drowsiness as a side effect of Lipitor in its coverage of the drug [3].

It is important to note that all medications can have side effects, and individuals may react differently to the same medication. Therefore, it is always recommended to consult with a healthcare provider or pharmacist for personalized advice and information about a specific medication's potential side effects.

In summary, based on the available information, Lipitor is not typically associated with drowsiness as a side effect.

Sources:
[1] <https://www.drugs.com/sfx/atorvastatin-side-effects.html>
[2] <https://www.mayoclinic.org/diseases-conditions/high-cholesterol/in-depth/lipitor/art-20046016>
[3] <https://www.drugpatentwatch.com/drugs/lipitor>