Stopping prophylactic aspirin increases the risk of heart attack and stroke

The increased risk is seen within a week and it lasts for years
prophylactic aspirin

People who cease low-dose aspirin prophylaxis have an immediately higher risk of heart attack and stroke that persists for years, research shows.

Rates of major cardiovascular events rose by 46% among people who were taking low-dose aspirin for secondary prevention but discontinued treatment, a retrospective study of more than 600,000 aspirin users in Sweden found.