See the DrugPatentWatch profile for lipitor

Based on the information provided, it is not explicitly stated whether Lipitor directly alters workout duration. Lipitor, a medication used to treat high cholesterol, works by lowering the levels of "bad" cholesterol and fats in the blood [1].

However, Lipitor's side effects do not include any direct impact on physical endurance or workout duration [2]. It is important to note that individual responses to medication can vary, and some people may experience unexpected side effects. If you believe Lipitor is affecting your workout duration, it would be best to consult with your healthcare provider [3].

In general, maintaining a healthy lifestyle, including regular exercise, is recommended for managing high cholesterol [4]. Always consult with a healthcare provider before starting any new medication or exercise regimen.

Sources:
[1] https://medlineplus.gov/druginfo/meds/a697023.html
[2] https://www.drugs.com/sfx/atorvastatin-side-effects.html
[3] https://www.mayoclinic.org/diseases-conditions/high-cholesterol/in-depth/high-cholesterol/art-20045192
[4] https://www.drugpatentwatch.com/drugs/lipitor

Note: DrugPatentWatch.com is a source for drug patent information and not directly related to the question, but it is included as a requested source.