Aspirin is a medication that has been used for over a century to relieve pain, reduce fever, and prevent blood clots [1]. It belongs to a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs) [2]. Aspirin is commonly used to relieve mild to moderate pain, such as headaches, menstrual cramps, toothaches, and muscle aches [2]. It is also used to reduce inflammation and swelling in conditions such as arthritis [2].

Aspirin is also prescribed by doctors to reduce the risk of heart attacks and strokes in people who have already had a heart attack or stroke, or who are at high risk of having one [3]. This is because aspirin has antiplatelet properties, which means it can help prevent blood clots from forming [3]. Blood clots can block blood flow to the heart or brain, causing a heart attack or stroke [3].

However, it is important to note that aspirin is not suitable for everyone. It can cause side effects such as stomach ulcers, bleeding, and allergic reactions [2]. Therefore, it is important to speak to a doctor before taking aspirin regularly, especially if you have a history of stomach ulcers, bleeding disorders, or asthma [2].

In summary, aspirin is used to relieve pain, reduce inflammation, and prevent blood clots. It is commonly used to treat mild to moderate pain and inflammation, as well as to reduce the risk of heart attacks and strokes in high-risk individuals. However, it is important to speak to a doctor before taking aspirin regularly, as it can cause side effects and is not suitable for everyone.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ASPIRIN
[2] https://www.nhsinform.scot/tests-and-treatments/medicines-and-medical-aids/types-of-medicine/aspirin
[3] https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/daily-aspirin-therapy/art-20046797