Hmmm.....
"Frontline. Fipronil is the active ingredient in the dog and cat flea prevention product, Frontline. It is only available from veterinarians and comes as a pump spray pack or spot on treatments. It is usually applied by wiping the animal down with a cloth dampened with Frontline spray. Young, sick and certain sensitive species (namely boas) may be poisoned after treatment with Frontline Spray as the fumes are quite strong due to the alcohol carrier used and can cause damage to the respiratory tract. Ingestion of water contaminated with Frontline has also been reported to be toxic too. "
http://www.karingalvet.com.au/Pet-Ca...tile-Mites.asp