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Fipronil

General Information

• Fact Sheet: Fipronil.pdf
• Product Names:

  Combat 12 Month (Clorox)
  Termidor SC (Bayer)
  Maxforce Ant Bait F1 (Maxforce Insect Control Systems)
  Maxforce Large Roach Bait (Maxforce Insect Control Systems)
  Combat Quick Roach Killing Gel (Combat Insect Control Systems)

• Chemical Class: Phenyl pyrazole insecticide
• Uses: Residential baits and gels, agriculture, golf courses
• Alternatives: least Toxic Biats and gels, Organic agriculture, golf courses
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Possible (10)
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Yes (7)
• Kidney/Liver Damage: Yes (7)
• Sensitizer/ Irritant: Yes (7)
• Birth/Developmental Not documented
• Detected in Groundwater: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Yes (7, 27)
• Toxic to Fish/Aquatic Organisms: Yes (7, 27)
• Toxic to Bees: Yes (7, 27)

Additional Information

• Supporting information:
  • Daily News Blog entries (Beyond Pesticides)
  • NCAP Fipronil Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • NPIC Fipronil Factsheet (National Pesticide Information Center)
  • PAN Pesticides Database:Fipronil (Pesticide Action Network)
  • PAN-UK Fipronil Factsheet (Pesticide Action Network UK)
  • CHEJ Fipronil Factsheet (Children's Health Environmental Coalition)
• Studies:
  • Fipronil-induced disruption of thyroid function in rats is mediated by increased total and free thyroxine clearances concomitantly to increased activity of hepatic enzymes. Leghait J, et al. 2009. Toxicology
  • Reproductive adverse effects of fipronil in Wistar rats. Ohi et al. 2004. Toxicology Letters
  • Human exposure to fipronil from dogs treated with frontline. Jennings, K.A. 2002. Vet Hum Toxicol