Aspirin is a medication that is used to relieve pain, reduce inflammation, and prevent blood clots. The recommended aspirin dosage varies depending on the reason for use, age, and medical history of the patient.

For pain relief, the recommended aspirin dosage for adults is 325 to 650 mg every four hours as needed, not to exceed 4 g in 24 hours [3]. For children, the dosage is based on their weight and should be determined by a doctor [3].

Aspirin is also used for its antiplatelet effects to prevent blood clots and reduce the risk of heart attack or stroke. The recommended dosage for this purpose is lower than the dosage for pain relief. According to the Mayo Clinic, the recommended dose for daily aspirin therapy to prevent heart attack or stroke is usually between 81 and 325 mg [2]. However, it is important to note that the decision to take aspirin for this purpose should be made in consultation with a doctor, as the risks and benefits of aspirin therapy vary depending on the individual's medical history and other factors [2].

It is important to follow the recommended dosage and not exceed the maximum daily dose of aspirin, as taking too much aspirin can lead to serious side effects such as stomach bleeding, ringing in the ears, and even liver damage [1]. Additionally, aspirin should not be given to children under the age of 18 who have a fever or symptoms of a viral infection, as it can lead to a rare but serious condition called Reye's syndrome [3].

In conclusion, the recommended aspirin dosage varies depending on the reason for use, age, and medical history of the patient. For pain relief, the recommended dosage for adults is 325 to 650 mg every four hours as needed, not to exceed 4 g in 24 hours. For daily aspirin therapy to prevent heart attack or stroke, the recommended dose is usually between 81 and 325 mg. It is important to follow the recommended dosage and not exceed the maximum daily dose of aspirin to avoid serious side effects.

Sources:
[1] DrugPatentWatch. Aspirin. Retrieved from https://www.drugpatentwatch.com/p/tradename/ASPIRIN
[2] Mayo Clinic. Daily aspirin therapy: Understand the benefits and risks. Retrieved from https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/daily-aspirin-therapy/art-20046797
[3] Drugs.com. Aspirin Dosage. Retrieved from https://www.drugs.com/dosage/aspirin.html