Flea Drops for Dogs

Flea drops are probably the best treatment for flea on dogs. These topical treatments work fast and are more effective than flea combs, shampoos, and sprays. If you want to quickly end the battle against fleas on your pets, flea drops are the way to go. In a matter of hours the fleas on your dog will die, giving relief from the bites.

There are a few different flea drops available in the market today, so here we will help you understand which is best for you and your dog.

flea drops for dogsBenefits of Flea Drops for Dogs

Flea drops are the most powerful and most effective type of flea treatment for dogs. Most flea control products for pets will only kill the adult fleas, and are not meant for lasting prevention. Flea drops on the other hand, will kill eggs, larvae, and adults. Flea drops are also powerful enough to only require one treatment a month, even through shampooing. This will end a flea infestation much faster!

Keep in mind, flea drops are effective because they use higher concentrations of insecticides. However, if you don’t want to use insecticides on your dog, you still have options. Sentry Natural Defense are flea drops that are completely natural and non-toxic.

Common Active Ingredients

  • Imidacloprid – a insect neurotoxin that will kill flea adults and larvae (more effective on adults)
  • Permethrin – naturally derived insect neurotoxin that kills adult fleas
  • Fipronil – insecticide that affects the central nervous system on adult insects
  • Pyriproxyfen – a juvenile hormone that prevents larvae from pupating into adults
  • Methoprene – another juvenile hormone that causes larvae to never reach adulthood
  • Essential Oils – natural insect control (Peppermint, Cinnamon, Lemon Grass, Clove)


Flea drops will often contain more active ingredients than other flea products, so it is essential that you carefully read the safety label. Depending on the size of your dog, different concentrations of ingredients will be used. It is important to only use flea drops intended for the size of your pet, otherwise the drops may be ineffective or they could harm your dog. These topical treatments should only be applied once a month. This differs from other flea control products which may be applied daily, weekly, or as needed. Never use dog drops on cats.

Best Flea Drops for Dogs

advantix flea drops for dogsBayer Advantix for Dogs

Bayer K9 Advantix flea & tick drops are one of the more popular brands of flea drops for dogs. This product contains imidacloprid, permethrin, and pyriproxyfen for the active ingredients. The combination of these ingredients makes it very effective in eliminating eggs, larvae, and adults of the most common parasites on dogs. These include fleas, ticks, flies, and mosquitoes. Advantix will remain effective for 30 days, and it is waterproof. This product also works best if applied before the flea season starts. It can be used on puppies as young as seven weeks old.

frontline drops for dogsFrontline Plus for Dogs

Frontline Plus for dogs also is the main competitor of Advantix, and works in a similar way. The active ingredients in Frontline Plus are fipronil and methoprene. This is a combination of neurotoxins to kill adults, and insect growth regulators hinder development of larvae. Similarly to Advantix, this medicated ointment should only be applied once a month, and remains even after baths and water immersion. This is because the active ingredients are kept in the dog’s oil glands, and are released as fur grows. One Frontline Plus package contains three applications, so your dogs will be protected for from fleas for a three-month period.

natural defense flea drops for dogsSentry Natural Defense

If you are looking for a more natural type of flea drops for dogs, check out Sentry Natural Defense. This is an insecticide-free product and the main active ingredients are essential oils. These include peppermint oil, cinnamon oil, lemon grass oil, clove oil, and thyme oil. Essential oils are plant’s natural defense to insects. So they are deadly to insects, but harmless to mammals. These all-natural ingredients are safe enough even when there are children and other pets around. Sentry Natural Defense gives up to four weeks of flea control for dogs and puppies. It is veterinarian tested and approved.

Related posts:

  1. Flea Drops for Cats
  2. Flea Spray for Dogs
  3. Flea Shampoo for Dogs
  4. Do Flea Collars Work?
  5. How to Get Rid of Dog Fleas