What About Combined Exposure to PBO and Other Similar Pesticides?

The Food Quality Protection Act (FQPA) requires that the U.S. EPA consider available information concerning the cumulative effects of a particular pesticide and other substances that have a common mechanism of toxicity.  U.S. EPA has confirmed that PBO does not appear to produce a toxic metabolite that is also produced by other chemicals, nor does it share a common mechanism of action with others, so this concern is unwarranted.