There are multiple generic brands of K9 Advantix II available. The flea drops listed on this page are equivalent to K9 Advantix II. They contain the same active ingredients (imidacloprid, permethrin, and pyriproxyfen), and in the same or similar formulations.
Provecta Advanced is a cheap alternative to K9 Advantix II, with the same ingredients.
Provecta Advanced is currently the cheapest generic version of K9 Advantix II that’s available at popular retailers. A four month supply costs around $25 on Amazon.com. The same amount of K9 Advantix II costs $45 or more.
PetLock Max is another generic alternative of Advantix. A four month package can be found for around $35 at Petco. However, it’s the cheapest generic option available if bought through Ebay.com, at a price of $12.
Prices and availability are based on the time of publishing and are subject to change. Content on this page is meant for informational purposes only, with no guarantee of accuracy. For full product information visit the manufacturer’s or retailer’s websites. See more disclaimers.
K9 Advantix II Active Ingredients
The active ingredient formulation in K9 Advantix II is 8.80% imidacloprid, 44.00% permethrin, and 0.44% pyriproxyfen (Nylar). All of the generic alternatives listed below contain the same active ingredients, and in the same or similar concentrations. For complete details, compare K9 Advantix’s product label to the labels of the generic versions (linked below).
Imidacloprid is an adulticide that kills adult fleas. Permethrin is another adulticide that also kill ticks, since imidacloprid doesn’t affect ticks. Pyriproxyfen is an insect growth regulator, which mimics natural insect hormones. Exposed females are sterilized, and exposed eggs and larvae can’t mature.
Generic Alternatives to K9 Advantix II
The products below are listed in order based upon price and availability from popular retailers at the time of publishing.
Provecta Advanced for Dogs
Provecta Advanced is an inexpensive, generic alternative to K9 Advantix II. View product label
Provecta Advanced for Dogs contains the same active ingredients, in the same concentrations, as K9 Advantix II. Both are topical flea drops for dogs. There are four Provecta Advanced products, each corresponds to a specific weight range of dogs: 5-10 lbs. (small dog), 11-20 lbs. (medium dog), 21-55 lbs. (large dog), and over 55 lbs. (extra large dog).
Provecta Advanced can be found on Amazon.com in 4 month packages for around $25. It can also be found on Ebay.com and other specialty retailers, though it’s currently more expensive.
Provecta Advanced for Dogs is our pick for the best generic alternative to K9 Advantix II, because it’s the cheapest option available at popular online retailers. However, some of the other choices are cheaper on Ebay.com (e.g. Petlock Max).
Petlock Max for Dogs
Petlock Max is the cheapest generic alternative to K9 Advantix II on Ebay.com. View product label
Petlock Max for Dogs is another cheap alternative to K9 Advantix II. Both products contain exactly the same active ingredients, and in equivalent concentrations. Both are applied as a topical flea drop. Petlock Max comes in 4 different products, formulated for different dog weight ranges. There are 5-10 lbs. (small dog), 11-20 lbs. (medium dog), 21-55 lbs. (large dog), and over 55 lbs. (extra large dog) products.
Currently, the cheapest place to buy Petlock Max for Dogs is on Ebay.com, for around $12 for a 4 month supply. It can also be found at Petco in stores and online, though it’s more expensive (around $35).
Advecta 3 is another generic alternative to K9 Advantix II. It’s seemingly identical to PetLock Max, as both brands have the same parent company. View product label
Advecta 3 is another product with the same active ingredients and formulation as K9 Advantix II. Both Advecta 3 and PetLock Max are brands produced by the same parent company, PetIQ (which is supplied by CAP IM). They seem to be the same product branded differently, and are available at slightly different prices and from different retailers.
The cheapest place to purchase Advecta 3 is Ebay, priced at $17 for 4 monthly doses. Advecta 3 can also be purchased at Walmart and Target, for around $32.
ParaDefense Advanced for Dogs
ParaDefense Advanced is comparable to K9 Advantix II. It’s produced by the same company as Provecta, but isn’t as widely available at retailers. View product label
ParaDefense Advanced for Dogs and Provecta Advanced appear to be the same product that’s branded separately. Both brands are manufactured by the same parent company, CAP IM Supply, Inc.
ParaDefense Advanced can be found for around $25 on Ebay.com. The same price point is on Amazon.com, but it’s currently out of stock.
Avantect II for Dogs
Avantect II contains the same active ingredients as Advantix II, but in slightly lower concentrations. View product label
Vetality Avantect II is a generic brand of K9 Advantix II. Both products contain the same active ingredients, but the concentration in Avantect II is slightly lower. Like K9 Advantix II, Avantect II is a topical flea medication for dogs. It comes in four formulations, each corresponding to specific weight ranges of dogs. These are small dog (4-10 lbs.), medium dog (11-20 lbs.), large dog (21-55 lbs.), and extra large dog (over 55 lbs.).
Avantect II for Dogs is available on Amazon.com for around $30 for a 4 month supply. It can also be found on Ebay.com and specialty retailers.
TevraPet Activate II for Dogs
Activate II is essentially the same product as Avantect II, as both brands are produced by the same parent company. View product label
TevraPet Activate II for Dogs is equivalent to Vetality Avantect II for Dogs. In fact, these are essentially the same flea drops with different names. Both products contain identical ingredients, and are produced by the same parent company, TevraBrands. Activate II appears lower on our list because it isn’t as widely available, namely on Amazon.com.