Piperonyl Butoxide: HED Risk Assessment for Reregistration Eligibility Document (RED).
Piperonyl butoxide is an insecticide synergist. Synergists are chemicals that lack pesticidal effects of their own but enhance the pesticidal properties of other chemicals. Piperonyl butoxide is used in combination with a wide variety of insecticides in ratios ranging from 3:21 to 20:1 by weight.
|Office of Prevention, Pesticides, and Toxic Substances|
|Office of Reregistration 4|
|Health Effects Division|