Aspirin is a medication that is commonly used for pain relief, fever reduction, and prevention of heart attacks and strokes. According to the Mayo Clinic [2], low-dose aspirin therapy is generally recommended for people who have had a heart attack or stroke, or who are at high risk of having one. The recommended dose for this purpose is usually between 81 and 325 milligrams per day. However, it is important to note that the exact dose may vary depending on the individual's medical history and other factors, so it is best to consult with a doctor before starting aspirin therapy.

The Drug Patent Watch [1] provides information on various formulations of aspirin and their dosages. For example, a common formulation is 81 milligrams, which is often used for low-dose aspirin therapy. However, other formulations may have different dosages, such as 325 milligrams or 500 milligrams. It is important to follow the instructions on the label or as prescribed by a doctor.

BuzzRX [3] states that taking more than the recommended dose of aspirin can increase the risk of side effects such as stomach bleeding, so it is important to avoid exceeding the recommended dose. Additionally, people who have certain medical conditions or take certain medications may be at higher risk of side effects from aspirin, so it is important to consult with a doctor before taking aspirin.

In summary, the safe dosage of aspirin depends on the individual's medical history and other factors. For low-dose aspirin therapy, the recommended dose is usually between 81 and 325 milligrams per day [2]. It is important to follow the instructions on the label or as prescribed by a doctor, and to avoid exceeding the recommended dose to minimize the risk of side effects [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ASPIRIN
[2] https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/daily-aspirin-therapy/art-20046797
[3] https://www.buzzrx.com/blog/how-much-aspirin-can-i-take-safely