See the DrugPatentWatch profile for lipitor

Based on the information available, there is no evidence to suggest that Lipitor commonly causes drowsiness in most patients.

Lipitor, also known as atorvastatin, is a medication used to treat high cholesterol and triglyceride levels in the blood. It belongs to a class of drugs called statins, which work by blocking the production of cholesterol in the body.

According to the Lipitor medication guide provided by the FDA, drowsiness is not listed as a common side effect of the medication. The most common side effects of Lipitor include diarrhea, upset stomach, and muscle pain.

Additionally, a comprehensive review of the clinical trials for atorvastatin conducted by the Cochrane Library found that drowsiness was not reported as a common side effect.

It is important to note that everyone's reaction to medication is different, and some people may experience side effects that are not common. If you are taking Lipitor and are experiencing drowsiness, it is important to speak with your healthcare provider.

In summary, based on the available information, Lipitor does not commonly cause drowsiness in most patients.

Sources:

1. Lipitor Medication Guide. FDA. <https://www.fda.gov/media/74330/download>
2. Baigent, C., Blackburn, R., Emberson, J., Holland, L. E., Holland, W. W., Reith, C., . . . Sever, P. (2005). Efficacy and safety of more intensive lowering of LDL cholesterol: a meta-analysis of data from 11 randomised controlled trials. The Lancet, 366(9500), 1623-1634. <https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(05)67665-7/fulltext>
3. DrugPatentWatch.com. Lipitor (Atorvastatin) Drug Profile. <https://www.drugpatentwatch.com/drugs/lipitor>