Fipronil is a synthetic insecticide used in agriculture and administered on pets to prevent fleas, ticks, and mites.
In insects,fipronil or its major metabolite (fipronil sulfone) non-competitively binds to
GABAA-gated chloride channels, thereby blocking the inhibitory actionof GABA A in the CNS. This leads to hyperexcitation at low doses, and paralysis and death at higher doses. First registered in 1996, it is widely used to target mole crickets, termites, andother insects and found in a variety of grass products.
Limit for California Compliance in parts per million (ppm):
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