Summary
K9 Advantix II is available in four products, each corresponding to specific weight ranges of dogs and puppies. There’s one for small dogs (4 to 10 lbs), medium dogs (11 to 20 lbs), large dogs (21 to 55 lbs) and extra large dogs (over 55 lbs). The applied dose is higher for dogs which weigh more. See the dosage by weight chart below. The formulation of active ingredients is identical in all four products. View the full product label for directions and more information.
Details
K9 Advantix II
Dosage by Weight
| Dog Weight | Monthly Dose |
| 4 to 10 lbs | 0.4 mL (0.014 fl oz) |
| 11 to 20 lbs | 1.0 mL (0.034 fl oz) |
| 21 to 55 lbs | 2.5 mL (0.084 fl oz) |
| over 55 lbs | 4.0 mL (0.135 fl oz) |
K9 Advantix II
Product Information Chart
| Dog Age | 7 weeks or older |
| Dog Weight | see chart above |
| Monthly Dose | see chart above |
| Kills | adults, eggs & larvae |
| Dose Duration | 30 days |
| Ingredients | 8.80% imidacloprid 44.00% permethrin 0.44% pyriproxyfen 46.76% other ingredients |
| Product Label | view |
| MSDS | view |
| Shop | Amazon |
Apply the Correct Dosage
K9 Advantix II products are specifically formulated and tested for efficacy and safety on dogs of specific weight ranges. The full dose of the correct product needs to be administered on a monthly basis. Control measures may fail if the manufacturer’s instructions on the label aren’t adhered to closely. Don’t under-dose or over-dose pets. Under-dosing sometimes occurs when pet owners split treatments between different dogs. Under-dosing can also arise from toxicity fears.
Re-dosing Early
Don’t apply more than one tube per treatment, even for larger dogs. Under normal circumstances, one dose will last 4 weeks. However, in severe flea infestations, re-treatment is allowable earlier in order to establish control. In these situations, don’t retreat more often than once every 7 days. Once flea control is attained, return to a monthly re-treatment schedule.
I accidentally ordered the size up in flea treatment thinking my dog would weigh 55lbs. But he is only about 45lbs. And I gave him the flea treatment. Will he generally be okay?
I don’t have the qualifications to answer this question, due to legal liabilities. I’d recommend contacting your dog’s veterinarian to address this concern. Sorry I can’t help more.
What is the per pound? If a 55 b dog gets a 2.5 mL dosage, isn’t it that .05 mL per pound. So a 60 lb dog would gt 3 mL – yes or no.
There is no specific dose per pound. The dosages are based on four weight ranges, as found on the labeling and in this article. The labeling should be adhered to for dosage. I can’t legally recommend any off-label usage. If you have a question specific to an unusual case, it would be best to contact a veterinarian.
My Rhodesian Ridgeback weighs 130 lbs. Will one tube for dogs over 55 pounds work or should I use two tubes?
I am not a licensed professional, and thus can only advise you to adhere to the labeled instructions. If you are worried that this dosage is insufficient, I’d recommend asking your dog’s vet.
My dog weighs 10.5 lbs. which should I use
This is a good question. I’d assume that either the small or medium product would be effective and safe, however I can’t recommend either as I’m not certified to advise off-label use. I’d contact your vet to see which product would be safest and most effective.
Dilemma … My dog weights 55 lbs. Should I buy the dose for Large dogs(21-55lbs) or XLarge dogs(over 55)? I don’t want to under or over dose. Thanks
Chris, I’m sorry for the late reply. Unfortunately, I can’t help much with this question for liability reasons. I’d recommend contacting your vet for advice, since your dog is on the borderline between products.