I have been doing research and found that this chemical is being put in preventatives for flea and tick used on dog and cats. this drug has proven to be quite potent and causes severe allergic reactions in cats and dogs some have even died from it I've attached in many links that will hopefully guide you in the right direction of putting how toxic this can be To domesticated pets and humans alike thank you.

http://www.epa.gov/opp00001/chem_search/cleared_reviews/csr_PC-129121_23-Nov-10_a.pdf http://www.scientificamerican.com/article.cfm?id=small-dogs-susceptible-flea-poison http://farmington.patch.com/groups/opinion/p/letter-dog-almost-died-from-flea-meds http://www.rightdiagnosis.com/medical/cyphenothrin_poisoning.htm http://talknationradio.com/?p=156 http://www.primaryinfo.org/1-projects/cyphenothrin.htm http://biospotvictims.homestead.com/129013-2006-03-20a.pdf http://www.thehealingbarn.com/equine/dangers.html http://www.reporternews.com/news/2009/apr/17/epa-warns-of-some-flea-tick-control-products/ http://dogaware.com/articles/newsfleatick.html http://news.legalexaminer.com/flea-and-tick-product-safety.aspx?googleid=267482 http://www.environmentalhealthnews.org/ehs/news/pet-pesticides

Examples of pets harmed by this drug. http://www.amazon.com/Frontline-Tritak-3pk-Large-Dogs/product-reviews/B00B19U8FQ


From the webpage dog aware.com this was stated "Cyphenothrin has been associated with a number of problems in dogs when used in earlier products, and is toxic to cats. "