Doctors sometimes recommend low-dose aspirin therapy, using 81 milligrams of the medication daily, for heart attack patients, but there are some potentially serious side effects including internal bleeding. Although low-dose therapy reduces the chances of a stroke from a blood clot, it increases the chances of bleeding strokes. People who take aspirin daily also have a greater chance of developing bleeding ulcers. For people with an aspirin allergy, any amount can cause a reaction, warns Mayo Clinic.
In people with a low risk for heart attack, the side effects of bleeding outweigh aspirin’s potential to prevent a heart attack. The Food and Drug Administration does not recommend daily aspirin therapy for patients who have not had previous cardiovascular conditions, such as heart attack or stroke, according to Mayo Clinic. While aspirin is likely safe for occasional use, patients should not start daily therapy without talking to their doctor.
Aspirin can also interact with other medications and supplements. Patients already taking blood thinners increase their risk of a major bleeding incident with aspirin therapy, although there are cases where combining medications is appropriate. However, the patient and doctor should always discuss these combinations, advises Mayo Clinic. Patients who stop aspirin therapy suddenly increase their chances of forming a blood clot due to a rebound effect. For patients who have a stint or have already had a heart attack, stopping the daily use of aspirin can endanger their health.