Lipitor is a medication used to lower cholesterol levels in the body [1]. According to the Mayo Clinic [2], muscle soreness is one of the most common side effects of taking statins, including Lipitor. However, the severity of muscle soreness can vary depending on the individual and the dosage of the medication. In some cases, muscle soreness can be severe enough to require a reduction in dosage or a switch to a different medication.

A study published in the Journal of Clinical Lipidology [3] found that increasing the dosage of Lipitor did not necessarily lead to an increase in muscle soreness. The study followed patients who had previously experienced muscle-related side effects while taking statins and were switched to a lower dose of Lipitor. The patients were then gradually titrated up to a higher dose of Lipitor over a period of 12 weeks. The study found that while some patients did experience muscle-related side effects, the majority were able to tolerate the higher dose of Lipitor without any issues.

In conclusion, while muscle soreness is a common side effect of taking Lipitor, it is not necessarily an indication that the dosage cannot be increased. The severity of muscle soreness can vary depending on the individual and the dosage of the medication. A study published in the Journal of Clinical Lipidology found that increasing the dosage of Lipitor did not necessarily lead to an increase in muscle soreness. However, it is important to consult with a healthcare provider before making any changes to medication dosages [2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/