Lipitor, a medication used to treat high cholesterol, can potentially impact workout routines. According to the National Center for Biotechnology Information (NCBI) [2][3], statins like Lipitor can cause muscle pain and damage, a condition known as myopathy. This side effect can be exacerbated by engaging in strenuous physical activities, including intense workouts.

The drug's official patent information [1] does not explicitly mention workout routines. However, it does list muscle pain and weakness as potential side effects, which could be exacerbated by exercise.

A study published in the NCBI's PMC database [2] found that statin use can lead to muscle damage, even in the absence of symptoms. This damage could potentially be worsened by rigorous exercise. Therefore, individuals taking Lipitor should consult with their healthcare provider before starting or changing their workout routines.

In conclusion, while Lipitor does not directly affect workout routines, its potential side effects, particularly muscle pain and damage, could be exacerbated by exercise. Therefore, it's crucial for individuals taking this medication to consult with their healthcare provider before making any significant changes to their workout routines.

Sources:
[1] DrugPatentWatch.com. (n.d.). Lipitor (Atorvastatin Calcium) Patent Information. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] Banach, M., Serban, C., Sahebkar, A., & Kellow, N. (2015). Statins and muscle: From pathophysiology to clinical management. Archives of Medical Science, 11(6), 1203–1215. https://doi.org/10.5114/aoms.2015.56802
[3] Kolovou, G. D., & Moutsopoulos, H. M. (2016). Statin-Associated Myopathy: A Comprehensive Review. BioMed Research International, 2016, 1–11. https://doi.org/10.1155/2016/3283053