I have to be careful with anticoagulants; because they make my hemorrhoids (piles) bleed badly. 9 months of Miracle-Mineral-Supplement did not have that effect.
I even have to be careful with things like nattokinase and niacin. I can take them. I just have to take low doses. I do not take aspirin either. I have no problem with serrapeptase. I do have a problem with stinging nettles. It just depends; and I suppose it is different with each individual.