Toram, Just so you know, the Frontline neural damage reports I have read to date (and I'll have to look at your links later) have been almost entirely based on a misreading of case studies in Australia. In those cases the point was that Frontline did not stop a particularly bad tick, and the neural damage and death in the animals happened NOT from the medicine, but from the tick bites themselves. Instead of checking into the tick cases further the people squawking ASSUMED that the medication was to blame. It took very little time to check into the particular ticks involved to find the actual cause. Here: http://www.shoal.net.au/~rwylie/tick.html on Paralysis Ticks/Poison Ticks ( Ixodes holocyclus which is normally found in only part of Australia but has been encountered in other parts after it hitched a ride on nursery plants), with more in John Lewington's _Ferret Husbandry, Medicine & Surgery_ where the ascending paralysis in dogs is noted and that it presents like botulism in ferrets. BTW, some other aspects of the assertions in past years were based on partly on misquoting of a vet who I wrote to asking about it... See also multiple VET posts in http://fhl.sonic-weasel.org and http://fhl.sonic-weasel.org/browse.php?msg=SG7516 and to get a feeling for how those people got confused and made assumptions: http://www.nra.gov.au/chemrev/fipronil.pdf So, as usual: GRAIN OF SALT WHEN READING *ANYONE* AND VERIFY, VERIFY, VERIFY! That said, we don't use the product ourselves by putting it into the ears because there is no real need to when it works perfectly by just being on the nearby skin, but early on we did with absolutely no negative results whatsoever. So, while we don't do it as a precaution it is NOT a precaution for anything we consider at all likely to happen -- just tad extra caution and nothing more than that. So, ;-) I wink at you and others who have been made concerned and add, "Nope, the sky isn't falling.":-) [Posted in FML issue 4835]