See the DrugPatentWatch profile for aspirin

Aspirin, also known as acetylsalicylic acid, is a common over-the-counter medication used to treat pain, reduce inflammation, and lower fever. It is also used for its blood-thinning properties to prevent heart attacks and strokes [1]. However, long-term use of aspirin can have side effects, including stomach ulcers, stomach bleeding, and an increased risk of bleeding in the brain [2].

According to the U.S. Food and Drug Administration (FDA), low-dose aspirin (75-100 milligrams) can be taken indefinitely by individuals who have had a heart attack or stroke, or who have a high risk of these events [3]. However, the decision to start or continue taking aspirin should be made in consultation with a healthcare provider, who can assess the individual's overall health, risk factors, and potential benefits and risks of aspirin therapy [3].

It is important to note that aspirin therapy is not recommended for everyone, and that the risks and benefits may vary depending on age, health status, and other factors [3]. For example, the FDA advises against the use of aspirin for the prevention of heart attacks and strokes in people who have not already had these events, as the risks may outweigh the benefits [3].

In addition, the U.S. Preventive Services Task Force (USPSTF) recommends low-dose aspirin for the primary prevention of cardiovascular disease and colorectal cancer in adults aged 50 to 59 years who have a 10% or greater 10-year risk of cardiovascular disease and are not at increased risk of bleeding [4]. However, the USPSTF recommends against aspirin use for the primary prevention of cardiovascular disease in adults younger than 50 years or older than 69 years [4].

In summary, the length of time that aspirin can be safely taken depends on individual health status, risk factors, and the reason for taking aspirin. While low-dose aspirin can be taken indefinitely by some individuals for the prevention of heart attacks and strokes, the decision to start or continue taking aspirin should be made in consultation with a healthcare provider.

Sources:

1. Mayo Clinic. Aspirin: Uses, side effects, and dosing. <https://www.mayoclinic.org/drugs-supplements-aspirin/art-20365802>.
2. National Institute of Diabetes and Digestive and Kidney Diseases. Nonsteroidal Anti-inflammatory Drugs (NSAIDs). <https://www.niddk.nih.gov/health-information/medical-conditions/nonsteroidal-anti-inflammatory-drugs-nsaids>.
3. U.S. Food and Drug Administration. FDA Advise on Use of Low-Dose Aspirin. <https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/fda-advise-use-low-dose-aspirin>.
4. U.S. Preventive Services Task Force. Aspirin Use for the Primary Prevention of Cardiovascular Disease and Colorectal Cancer: U.S. Preventive Services Task Force Recommendation Statement. <https://jamanetwork.com/journals/jama/fullarticle/2779023>.
5. DrugPatentWatch.com. Aspirin. <https://www.drugpatentwatch.com/drugs/aspirin>.