When is it necessary to combine Plavix and Aspirin for vascular protection

Is it necessary to add Plavix (clopidrogel) to a baby dose aspirin for vascular protection?

If you need aspirin for cardiovascular protection only, you will not gain additional benefit by adding a clopidrogel.

If you need aspirin for established cardiovascular disease, you will not gain additional benefit by adding clopidrogel.

If you are suffering from acute coronary syndrome (aka a heart attack) or have a stent, then the additional of clopidrogel to baby aspirin is benefiticial.