Advantage II 6-Dose Flea Prevention and Lice Treatment for Extra-Large Dogs Over 55 Pounds

Mrs. W.E. Crownover: This works very well on fleas but, not so great on ticks.
I don't know if they've changed the formula or, if there's just a bad outbreak of ticks this year.

My animals are outdoor animals and I have had to pull ticks off them every day, even though they are properly dosed with this medication.

United States on Nov 13, 2023

Amazon Customer: Did just fine 😀

United States on Nov 09, 2023

maxus: Works great on cats too with no bad side effects.

United States on Oct 16, 2023

ChristinaChristina: This is the ONLY brand I trust and will ever purchase. The formula is effective pretty quickly. My animals can't stand when I apply this to them but it is the only brand that I have found to ever kill and get rid of fleas completely, I've tried so many too! I use this on my ferrets too, but super carefully! I drip the formula into a glass vile and use a mL syringe. I've adopted many ferrets infested with fleas and this is the only formula that has ever successfully killed the fleas. It doesn't burn them, but they must be separated until it's completely dry or else they may get it in there mouths from playing with each other. Overall great product and a must-have in my home!

United States on Oct 13, 2023

Happy Dog Lady: I have used this product for years on my dogs & can normally go as long as up to 8 weeks between doses. I have noticed that on some years (2014 & 2011) that the fleas are particular difficult to control. I know it is not due to this product not being effective because I have treated my yard with 2 different products that normally work very well within a 10 day period & even those products have made very little difference in the fleas. I have treated my dogs at 9 days & repeated again at 13 days. I am also using natural flea shampoo & topical sprays with essential oils. The fleas do die within 12 hours, but by that time my dog with allergies is a mess due to bites before they die. I am now seeing primarily very tiny fleas which tells me that I am achieving some control over the adult fleas. I dislike giving doses that close together, but that is what the insert recommends (actually every 7 days until controlled) for heavy flea infestations. One of my dogs has terrible flea allergies. He has been miserable & has been on prednisone & benadryl for over a month. I don't even like for him to be outdoors because they are so bad. I have to pick fleas off both...

United States on May 10, 2014