Pet product makers must remove a pesticide from their flea collars. The pesticide can cause neurological defects in humans.
National Resources Defense Council (NRDC) sued Environmental Protection Agency in February 2014 for not stopping the use of propoxur in flea collars. Miriam Rotkin-Ellman of NRDC says ingesting propoxur can cause learning disabilities and motor-skill problems in young children. EPA now requires makers to stop putting propoxur in flea collars by April 2015 and to stop shipping products that include propoxur by April 2016.
Until then, NRDC says you should avoid flea collars that use propoxur, which is specified on a pet product’s label.