Bests & Worsts Reviews from Amazon

Put the Seresto collar on my 4 yr/old vivacious ShiTzu and beginning on the second day she started getting lethargic. On the third day she turned into a limp hardwood floor duster that wouldn't move much at all... It's day four and the collar is off. Will update posting in a few days. Update- after almost two days of removing the seresto collar, I'm elated to share that my little Pursey Pie is back to her rambunctious self!!!! I'm almost certain that the collar was the direct reason for her "low tones". Thank God she didn't experience any seizures like some others. Frontline Plus, here we come!