According to the provided sources, Lipitor and aspirin are two different medications that are often prescribed together to reduce the risk of heart disease and stroke in patients. However, the recommended dosage of these medications when taken together may vary depending on the individual patient's medical history and condition.

Lipitor, which is also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. The recommended dosage of Lipitor may vary depending on the patient's age, medical history, and other factors. According to Drug Patent Watch [1], the recommended starting dose of Lipitor for most adults is 10 mg once a day. However, the dosage may be increased up to 80 mg once a day in some cases.

Aspirin, on the other hand, is a medication used to reduce pain, fever, and inflammation. It is also commonly used to reduce the risk of heart attack and stroke in patients who are at high risk. According to Health Central [2], the recommended dosage of aspirin for heart disease prevention is usually between 81 mg and 325 mg per day, depending on the patient's medical history and condition.

When taken together, the dosage of Lipitor and aspirin may need to be adjusted to avoid potential interactions and side effects. According to a study published in Frontiers in Pharmacology [3], the combination of Lipitor and aspirin may increase the risk of bleeding in some patients. Therefore, the recommended dosage of aspirin may need to be reduced in patients who are also taking Lipitor.

In summary, the recommended dosage of Lipitor and aspirin when taken together may vary depending on the individual patient's medical history and condition. Patients should consult with their healthcare provider to determine the appropriate dosage of these medications for their specific needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthcentral.com/article/aspirin-lipitor-time
[3] https://www.frontiersin.org/articles/10.3389/fphar.2021.589418/full