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An excellent value from the K9 Advantix brand
K9 Advantix Extra Large Dog 30-day treatment & prevention protects dogs over 55 lbs. from fleas, ticks, mosquitoes, biting flies, and lice
Affordable formula works on contact to kill and repel fleas on dogs within 12 hours of application even without a bite
Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
No prescription needed
8 reviews for K9 Advantix Flea, Tick & Mosquito Prevention for Dogs Over 55 lbs. | Flea Drops for Extra Large Dogs | Apply Monthly | 2 Treatments
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$14.98

Mary A. –
Works great
Quality product
Arica D Adams –
Good deal!
Advantix works really well and I like that it keeps away mosquitoes. Since the season is coming to an end, it was nice to get a couple more months without buying a large supply. Our big lady can roam happily outside and stay protected!
Drifterskid1 –
Seller was excellent but I think fleas are now resistant.
Unfortunately, the product doesn’t work as well is it once did but this isn’t the fault of the seller. I believe the fleas have just become more resistant to the medication. Overall the sale was excellent.
Rachel Donaldson –
Tick treatment
These work great for killing the ticks in our area. Not much help for fleas. My dogs line up for application, I don’t even have to chase them. No side effects I am aware of. I so reapply every 3-4 weeks
Shaun Bradham –
FLEA DESTROYER INBOUND
No issue, works perfectly
Amazon Customer –
It works!
This is a wonderful flea treatment and keeps critters away.
wj –
Try something else.
This did not work for my dogs fleas. Also, my cat licked some some of the medicine of of her fur and was sick for days.
Ronnie –
Perfect
Works very well and perfect price for 2 months supply.