Ryan is correct to caution about taking willow root, or anything for that matter. And I was aware of the connection with aspirin and the salicylic acid. Here is the deal for me. There appears to be a synergetic effect of the willow root. I take far, far less of it that other OTC pharmaceuticals, including aspirin. It is relatively inexpensive and it works. Like anything in life, try prudently. And like manyt alternative medicines, it works, so it gets painted with boogie man stories by those less educated. I discovered it by studying American Indian medicinal practices, as I have constant pain and had to learn to manage it without getting addicted. My two cents in this over inflated world.