Lipitor is a brand name for atorvastatin, a medication used to lower cholesterol levels in the blood. While the sources provided do not explicitly address whether the dosage of Lipitor can be adjusted for salt substitute users, they do provide some information that may be helpful in understanding the potential interactions between Lipitor and salt substitutes.

According to DrugPatentWatch [1], the recommended starting dose of Lipitor is typically 10-20 mg per day, with the maximum recommended dose being 80 mg per day. However, the appropriate dosage for an individual may depend on a variety of factors, including their age, weight, medical history, and other medications they may be taking.

The American Academy of Family Physicians [2] notes that salt substitutes may contain potassium, which can interact with certain medications, including some blood pressure medications. However, the article does not specifically mention Lipitor or other cholesterol-lowering medications.

A study published in the journal Circulation Research [3] investigated the potential interactions between atorvastatin (the active ingredient in Lipitor) and potassium channels in the heart. The study found that atorvastatin can inhibit certain potassium channels, which may increase the risk of arrhythmias (irregular heart rhythms) in some patients. However, the study was conducted in vitro (in a laboratory setting) and did not involve human subjects.

Overall, while the sources provided do not provide a clear answer to the question of whether Lipitor dosage can be adjusted for salt substitute users, they do suggest that there may be potential interactions between Lipitor and potassium-containing substances, such as salt substitutes. Therefore, it may be important for individuals who are taking Lipitor and using salt substitutes to discuss their medication regimen with their healthcare provider to ensure that they are taking the appropriate dosage and avoiding any potential interactions.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.aafp.org/pubs/afp/issues/2007/0515/p1487.html
[3] https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.118.312782