Based on the information available, there can be side effects associated with the minimum effective dose of Lipitor (atorvastatin), although not everyone who takes this medication will experience them. The most common side effects of Lipitor include headache, diarrhea, and joint pain [1]. More serious side effects, while less common, can include muscle pain and weakness, liver damage, and increased blood sugar levels [1].

It is important to note that the likelihood of experiencing side effects may increase as the dosage of Lipitor increases [1]. However, even at the minimum effective dose, some individuals may still experience side effects. It is essential to consult with a healthcare provider to determine the appropriate dosage of Lipitor and to report any side effects promptly.

In addition, it is worth noting that drug patents can impact the availability and cost of medications like Lipitor. According to DrugPatentWatch.com, Lipitor's patent expired in 2011, which led to the introduction of generic versions of the drug [2]. This development may have implications for patients' access to and affordability of Lipitor.

In summary, while there can be side effects associated with the minimum effective dose of Lipitor, not everyone who takes the medication will experience them. Common side effects include headache, diarrhea, and joint pain, while more serious side effects can include muscle pain and weakness, liver damage, and increased blood sugar levels. It is crucial to consult with a healthcare provider to determine the appropriate dosage of Lipitor and to report any side effects promptly. Furthermore, the expiration of Lipitor's patent in 2011 may have implications for patients' access to and affordability of the drug.

Sources:

1. Mayo Clinic. (2021). Atorvastatin (Oral Route). Retrieved from <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20064551?p=1>
2. DrugPatentWatch.com. (2021). Atorvastatin. Retrieved from <https://www.drugpatentwatch.com/drugs/atorvastatin>