Based on the information available, there is no direct evidence presented that Lipitor, a medication primarily used to treat high cholesterol, has a pain relief impact. Lipitor is a statin, a class of drugs that works by blocking a substance your body needs to make cholesterol [1].

However, it's important to note that some patients report experiencing muscle pain as a side effect of taking Lipitor and other statins [2]. This is not a pain relief impact, but rather a potential adverse effect.

As for the relationship between Lipitor's dosage and its effects, higher doses of Lipitor are generally associated with greater cholesterol-lowering effects [3]. However, the risk of side effects, including muscle pain, may also increase with higher doses [2].

In conclusion, while Lipitor's muscle pain side effect may be related to dosage, there is no evidence to suggest that Lipitor has a pain relief impact that is related to its dosage.

Sources:
[1] Mayo Clinic. (2021). Lipitor (Atorvastatin). Retrieved from https://www.mayoclinic.org/drugs-supplements/lipitor-oral-route/description/drg-20068554
[2] Stat Pearls. (2021). Statin Myalgia. Retrieved from https://www.ncbi.nlm.nih.gov/books/NBK532952/
[3] Drugs.com. (2021). Lipitor. Retrieved from https://www.drugs.com/lipitor.html
[4] DrugPatentWatch.com. (2021). Lipitor (Atorvastatin Calcium). Retrieved from https://www.drugpatentwatch.com/drugs/lipitor/expiration-date