Purchased when we noticed fleas on our Shih Tzu, over the next day, found dead fleas everywhere, so it appears to work. Some of the negative reviews might be failing to follow the bathing, cleaning and prevention steps of flea eradication. 1 star off since it only affects adult fleas, not eggs and larvae.

My 18lb dog was throwing up foam and had bloody stool the day after giving her one of these. She has recovered overnight. Wouldn’t recommend.

I have a frenchie that is 26 pounds. A whole chew was too much for him and caused bad diarrhea. 1/4 of it does the trick.

This didn't work It is not like it use to be.I would not purchase again and it is very expensive.

PLEASE DO NOT PURCHASE! I purchased this item as a last resort. My dog is usually on nexguard. Within the last year she has needed allergy shots and the vet at petco give her Simparca because for whatever reason they don’t offer Nexguard. Well the perscription kept getting canceled online 3xs and my dog was so itchy and uncomfortable. 350$ at the vet and i got these over the counter. Within 10 days she lost hair around her eyes, neck, paws, groin

Here in Texas it's been Hot and Humid for months. The backyard where my Min Pin goes to potty and romp has been a flea paradise! We've had exterminators treat the yard but a few days later the fleas are back and my Lil guy is miserable. Flea collars and powders do nothing! A neighbor with 3 dogs had been dealing with the same problem and was spending a fortune as was I going to the Vet to alleviate the misery our beloved dogs were going through from fleas ! A friend told her about Advantus so with some skepticism she tried it and it worked so well she told all her friends and neighbors about this product. I've been using it for 5yrs now and no longer does my Lil sidekick whimper in misery and I'm not going broke at the Vets !

We've been using Advantus soft chews to prevent fleas for our 3 adult dogs for about 6 months. We give them 1 chew every other day. We haven't had a flea infestation this entire time.

I bought this a month ago and there is no improvement, fleas still here. does the company have any warranty on this product? paid $65 dollars if it worked that would have been great but it did not work!