Pyrethrin is extremely toxic to aquatic life, such as bluegill and lake trout while it is slightly toxic to bird species, such as mallards. Toxicity increases with higher water temperatures and acidity. Natural pyrethrins are highly fat soluble, but are easily degraded and thus do not accumulate in the body.
pmep.cce.cornell.edu/profiles/extoxnet/pyrethrins-ziram... pmep.cce.cornell.edu/profiles/extoxnet/pyrethrins-ziram/pyrethrins-ext.html
The diagnosis of permethrin or pyrethrin toxicity is based on physical exam findings as well as a recent history of topical flea product application. Although skin and hair tests can be done to confirm the presence of insecticide, those results may take several days.
www.petplace.com/dogs/permethrin-and-pyrethrin-toxicity... www.petplace.com/dogs/permethrin-and-pyrethrin-toxicity-in-dogs/page1.aspx
Sources, signs, immediate care, and veterinarian care of an exposure to a toxin known as pyrethrin, permethrin, or pyrethoid. ... Small dogs are more susceptible to pyrethrin/permethrin toxicity than larger dogs since their surface area to weight ratio is higher. Symptoms may be seen within a couple of hours, especially in cats.
www.peteducation.com/article.cfm?c=2+1677+1684&aid=2252
Pyrethrins - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information ... Toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity. ... Pyrethrins is a Pyrethrum or Pyrethrin compound.
www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC3429... www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC34291
DANGER- high toxicity. Pyrethrins & Pyrethroids. What are pyrethrins? • Pyrethrins are insecticides that are derived from the ...
npic.orst.edu/factsheets/pyrethrins.pdf npic.orst.edu/factsheets/pyrethrins.pdf
Tests of some pyrethroids on laboratory animals reveal striking neurotoxicity when administered by injection or orally. Systemic toxicity by inhalation and dermal absorption is low. The acute toxicity, calculated by LD50’s, ranges from low to high, depending on the specific formulation.
www.beyondpesticides.org/infoservices/pesticidefactshee... www.beyondpesticides.org/infoservices/pesticidefactsheets/toxic/pyrethroid.htm
Pyrethrin - Wikipedia, the free encyclopedia
The pyrethrins are a pair of natural organic compounds that have potent insecticidal activity. Pyrethrin I and pyrethrin II are structurally related esters with a cyclopropane core. They differ by t...
en.wikipedia.org/wiki/Pyrethrin
Such extracts contain 20-25% total pyrethrins, the main active constitutents being pyrethrin I and pyrethrin II plus smaller amounts of the related cinerins and jasmolins. ... 2.1.7 Supplementary studies of toxicity No information. 2.1.8 Modifications of toxicity There is some doubt whether methylenedioxy synergists such...
www.inchem.org/documents/pds/pds/pest11_e.htm
Pyrethroids also act on some isoforms of voltage-sensitive calcium and chloride channels, and these effects may contribute to the toxicity of some compounds.
www.anapsid.org/pyrethrin2.html www.anapsid.org/pyrethrin2.html
Pyrethrin compounds can cause neurotoxicity when used in an excessive dose. A case of stuttering and general clumsiness in a toddler associated with topical pyrethrin use is described. ... [Pyrethrin and pyrethroid (permethrin) in the treatment of scabies and pediculosis] 30 Dec 1990...
www.find-health-articles.com/rec_pub_18645333-topical-p... www.find-health-articles.com/rec_pub_18645333-topical-pyrethrin-toxicity-leading-acute-onset-stuttering-toddler.htm