The bottom-line is that there is no perfect way to determine to what degree you are aspirin resistant, but the technology is improving. However, if you are looking for some way to put a hard number on where you stand, there are several interesting tests available (as outlined above).
For now, I simply take the high-end of the dose range until my tummy starts to hurt, then I take a break or reduce my dose. Keep in mind we are all different. Although commonly used, aspirin is a powerful drug that can and does hurt and kill people every year. Only your doctor should advise you on the proper dose for YOU!
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