









🐾 Protect your big pup like a pro—because bugs don’t stand a chance!
Bayer K9 Advantix II Extra Large Dog is a vet-recommended, topical flea, tick, mosquito, biting fly, and lice treatment designed for dogs over 55 lbs. It kills fleas within 12 hours and repels multiple pests on contact, preventing infestations without the need for a prescription. Waterproof after 24 hours and fragrance-free, it offers convenient, monthly protection to keep your dog comfortable and pest-free all year round.













| ASIN | B07NX2VWYC |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #101,745 in Pet Supplies ( See Top 100 in Pet Supplies ) #129 in Dog Flea Drops |
| Breed Recommendation | Extra Large |
| Color | Blue |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,486) |
| Date First Available | 22 March 2019 |
| Item Form | Topical |
| Item Weight | 22.7 g |
| Item model number | 90204386 |
| Number of Items | 1 |
| Pet Life Stage | 7 weeks and older |
| Pet Type | Adult |
| Product Dimensions | 10.8 x 2.22 x 12.07 cm; 22.68 g |
| Quantity | 1 |
| Size | 1 Pack |
| Specific Uses | Parasites |
| Storage Information | Store at temperatures and conditions as indicated on the product label. |
| Volume | 4 Milliliters |
| batteries required | No |
M**R
This work perfectly for our lab no skin irritation always great
D**L
I have bought this product many, many times and will absolutely continue to do so for my girls Ruby and Jade. If you live in Texas, you already know the bugs here don’t play around — especially the mosquitoes. These things keep all the thugs off my dogs. Fleas, ticks, mosquitoes… not today. 🚫 Ruby and Jade have zero issues while using this — no reactions, no irritation, no problems at all. It’s easy to apply, works exactly like it’s supposed to, and gives me peace of mind all summer long when the bugs are at their worst. I’ve tried other products over the years, but I keep coming back to this one because it’s reliable, effective, and consistent. When something works this well and keeps my dogs comfortable and protected, I’m sticking with it. If you’ve got dogs and live in a buggy area (or just want the creepy crawlies evicted), this is a must-have. Ruby and Jade approve 🐾🐾 — and so do I!
H**R
My dog sitter recommended for my dog who loves to roll in the grass and kept getting fleas . Works great for the first 3 weeks , the last week fleas showed up again
C**C
Works as it should - good high in cost
A**O
Works as always
Trustpilot
2 days ago
4 days ago