I ran an AKC kennel in Al and had Yorkies, Shih Tzu's & Cocker Spaniels. Used on all my dogs ( pregnant & newborn) and NEVER had any problem what-so-ever. I highly recommend it.

I had been using Advantage for years, but last year, it didn't have any effect. All my critters had fleas. I found a natural supplement that had really good results, but none, so I went to Frontline. Within 2 days, everyone was flea free, and it lasts a bit longer than a month. Also, I have an iguana that got mites that I fought for months with other products, I sprayed her one time and she was mite free-that was 4 years ago and is still mite-free.

I live in north central Texas. I used Frontline / Frontline Plus religiously for years and could not have been happier. Unfortunately, three years ago it totally quit killing fleas on my dogs. I'm sure they had developed resistance as they were covered far worse than I had ever seen. It never had been effective on ticks, so I (reluctantly) switched to Advantix. Occasionally, I will use Comfortis just for fleas if it is not tick season.

We raise Shih Tzu in our home. We have been using Frontline Plus for several years, and have never ever seen a single flea or tick on any of our pets. Thank you Frontline (and Revival).