The Best Flea Pills for Dogs (2021 Reviews)

Rich Duda
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It’s not a happy situation when your dog is biting, scratching, and generally miserable because of fleas. What does your dog have to deal with besides losing hair; doggie odor, hot spots, infection, and discomfort?

Flea pills are the easiest solution, and they work great. But are there any flea pills for dogs that are better than the others?

We got to do hundreds of hours of research and we have your back when it comes to the best flea pills for dogs.

NameCategoryProduct
CAPSTAR Blue FAST ACTINGBest OverallCAPSTAR Blue FAST ACTING
Nutri-Vet Brewers YeastBudget PickNutri-Vet Brewers Yeast
Capstar 12Ct nitenpyram 57 MgUpgrade PickCapstar 12Ct nitenpyram 57 Mg

1. CAPSTAR Blue FAST ACTING

Our rating: 9 / 10

CAPSTAR Blue FAST ACTING

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Pros:

  • Zero mess
  • Contains one tablet per dose
  • Convenient packaging

Cons:

  • Can be costly
  • Large dogs will need multiple tablets
  • Available only at vet’s offices

When it comes to flea tablets offers a rapid solution for infested pets. Its formula fipronil acts faster than traditional treatment methods. CAPSTAR is an oral pill that is readily administered to most pets without their owners going through the hassle of mixing liquids or applying creams.

Cats and dogs will ingest the fast acting formula unsuspectingly leaving food or water bowls as a simple method of dispensing CAPSTAR. It’s also the reason why the packaging is somewhat rigid and prevents accidental breakage of the tablets.

The high concentration of fipronil in the CAPSTAR solution provides fast acting relief; this flea medication begins to work within 4 hours of its administration; most users will notice fleas gone in as little as 12 hours. CAPSTAR doesn’t only target fleas, it also provides relief from other common pet parasites such as ticks, paralysis tick, and mosquito larvae.

2. New Dog & Cat Md Quick Tabs

Our rating: 8 / 10

New Dog & Cat Md Quick Tabs

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Pros:

  • Easy to administer
  • Fast and effective

We always recommend using Flea Pills for Dogs and other products to kill fleas on your dog in conjunction with good flea prevention.

By taking a pill once per day for two days, you can be sure you’re attacking the entire flea population in your dog’s neck and collar area. Pretty impressive, especially considering the fact that;

It’s the only product that can be given directly to dogs under 25 lbs.

3. SENTRY Capguard

Our rating: 8 / 10

SENTRY Capguard

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Pros:

  • One dose treats fleas for up to 4 weeks
  • Safe to use on puppies over 4 weeks old
  • Clinically proven to kill adult fleas and flea eggs in as little as 4 hours
  • Made in the USA with premium quality active ingredients
  • US made FDA approved
  • No harmful odor or residue
  • Easy to administer
  • The first and only oral flea control medication
  • Patent-pending technology
  • For indoor and outdoor use

Cons:

  • Not for puppies under 4 weeks old
  • Do not give if your dog is suffering adverse reaction to the Capguard, or any of the ingredients
  • Dogs should not be exposed to sunlight or rain within the first few hours after treatment.
  • Not for killing ticks

4. Capstar Fast-Acting Oral Flea Treatment

Our rating: 8 / 10

Capstar Fast-Acting Oral Flea Treatment

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Pros:

  • Available for Sale on Amazon
  • Convenient for on-the-go use
  • Able to control flea growth in a matter of hours
  • Easy to store and easy to administer
  • A trusted brand leading in flea prevention

If you’re looking for a flea pill to treat your dog on a short-term basis and free from the need for a vet, then Capstar is the best choice for you. It’s an effective oral flea treatment for all types of dogs weighing between 26-125 lbs. It kills fleas in the same day as ingestion and it can kill 100% of the fleas in your dog’s environment in less than 3 hours.

Capstar Red for Large Dogs is to be used on dogs that are at least 5.5 lb. The active ingredient is Nitenpyram which can cause certain side effects like vomiting, loss of appetite, diarrhea, and trembling. It’s important to note that some people have seen their dogs’ fur become stained by the medication but it washes out with regular shampooing.

5. Capstar Fast-Acting Oral Flea Treatment

Our rating: 8 / 10

Capstar Fast-Acting Oral Flea Treatment

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Pros:

  • Made specifically for dogs and cats
  • Works within thirty minutes
  • Also effective against adult fleas, flea eggs, and flea larvae
  • Comes in a tablet for easy administration
  • Safe for puppies and kittens that are 2 pounds or greater
  • Affordable
  • Easily available
  • Active ingredient is Nitenpyram
  • It is also important to know that Capstar Flea pills are given at the start of an infestation to prevent our dog from catching all the fleas, before a heavy infestation begins, also, these are to be administered only when symptoms of fleas are discovered in dogs, as in the case of most pup owners, they take dogs to the park, beaches etc., these pills are advised before leaving home

Cons:

  • They are known to have no side effects, so the chances of your dog having an allergic reaction to the tablet are almost zero
  • One important thing to note, before administering this pill to your dog, let me explain the importance of two ingredients in it

Cats, and Kittens.

6. PetArmor FastCaps

Our rating: 7 / 10

PetArmor FastCaps

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Pros:

  • Affordable
  • Easy to Use
  • Safe for Cats and Dogs

Cons:

  • Only available in 8 count
  • Where’s the beef?

Nitenpyram, more commonly known as praziquantel, kills the fleas on your pet … and their larvae and eggs!

A little background on praziquantel…

Praziquantel is an organophosphate anthelminthic (anti-worm) drug that’s used against tapeworms and certain types of flukes that infect humans. It’s also the active ingredient in Ober® Worming Paste, which treats roundworms, hookworms, whipworms, and pinworms in dogs and cats.

7. Nutri-Vet Brewers Yeast

Our rating: 7 / 10

Nutri-Vet Brewers Yeast

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Pros:

  • Safe for small breeds
  • Safe for pregnant or nursing dogs
  • No need to refrigerate
  • Contains no pesticides
  • Cheap

Cons:

  • Not as effective as other flea medications
  • Fairly large pills
  • No additional ingredients like pyrethrin
  • Only kills adult fleas, not flea eggs
  • Pills are a little large and hard for some dogs to swallow

Pillbury for Pets Yeast with Garlic is a very effective way to deter fleas on dogs. It has a taste that dogs enjoy and the fact that it’s a chewable form makes it very easy to give to your four-legged friend. As compared to other forms of medication, these supplement pills are also cheaper.

Sprinkle a portion of the pills in your dog’s food to give them an additional boost of vitamins. Then, give the dog the full amount by itself so that they get the full dose of flea prevention. This medication does not mix well with food if the dog eats it directly from their bowl or without eating something else first.

It is, therefore, recommended to put the pills in a small amount of a tasty treat like peanut butter. Garlic is extremely effective in flea treatment. However, it is not dangerous to your dog in any way.

8. Only Natural Pet EasyDefense Barrier Bites Soft Flea Chews

Our rating: 7 / 10

Only Natural Pet EasyDefense Barrier Bites Soft Flea Chews

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Pros:

  • Soothes the skin
  • Controls fleas and ticks
  • No oily residue
  • All natural ingredients
  • Can be used for cats and kittens too
  • Great price

Cons:

  • It leaves some crunchy residue
  • Large dogs should not exceed the recommended dosage
  • It takes a while to kick in

Circular discs infused with flea-killing properties to repel and kill fleas and ticks. These soft and chewy treats work by producing a shield around dogs and puppies that repels dangerous parasites as well as their eggs from penetrating the skin.

The main way fleas and ticks change their life is by laying eggs … but this product stops that from happening. It uses an all-natural garlic extract that kills fleas before they even leave the host their eggs.

9. EcoFlea by ColoradoDog

Our rating: 7 / 10

EcoFlea by ColoradoDog

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Pros:

  • Nearly 100% bio-degradable
  • Shippable to many countries
  • Contains organic ingredients
  • No side effects
  • Made in the USA
  • Affordable
  • A one month supply
  • No mess, no chemicals, no greasy treats
  • A ton of positive reviews

No Sprays, no Messy Greasy Treats- Made in the USA!

The name says it all – EcoFlea. This organic flea treatment is formulated to treat your pup’s flea problem without the use of chemicals. It’s a chewable dog treat that contains organic ingredients. You can feed this to your dog as often as you’d like without fear of any side effects.

This natural, organic product is ideal for small to medium dogs weighing up to 40 lbs. It covers a three-month flea and tick cycle. It’s perfect for making sure that your dog doesn’t contract serious diseases or become a flea host to other dogs if well managed. It can also be used on cats for up to six months. It’s fairly affordable for the number of treats you receive and the fact that it covers an entire flea season.

10. Flea Away All Natural Flea

Our rating: 7 / 10

Flea Away All Natural Flea

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Pros:

  • 100% all-natural
  • Soothes itchy, irritated skin
  • Safe for cats up to 12 pounds
  • Treats fleas, ticks, mosquitoes, and lice
  • Friendly for cats that can’t take liquid drops
  • Price per dose
  • Ingredients are organic

Cons:

  • Hard to tell if it’s really working
  • The cats don’t like the taste

When we bought our first cat many many years ago, I was very excited about adding another member to our family. I had no idea what one of the biggest challenges would be – keeping him free of fleas, ticks, and other bugs. If you’ve ever tried the traditional Bayer, Frontline, or other brand, you know how costly it can be to manage these pests each month.

Years ago, I began reading that our pets were often getting sick after being treated with spot-on chemicals. After doing more research, I decided to make the switch and go for a more natural option. The result was that not only did the company save a lot of money, but our cat kept his hair, bones, and vitality.

11. Advantus Flea Soft Chews

Our rating: 7 / 10

Advantus Flea Soft Chews

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Pros:

  • Easy to take
  • Excellent price
  • Works on all stages of a flea's lifecycle
  • Safe for dogs and puppies
  • Suitable for natural flea repellents

Cons:

  • Made from beef so some dogs don't like the taste
  • Some dogs do not like taking pills
  • Requires 4 doses

The Advantus Flea Soft Chews for Small Dogs 4-22lbs are my personal favorite flea pills. They not only kill adult fleas but also are effective at killing flea eggs and larvae as well as repelling fleas from biting the dog. It's perfect for dogs with flea allergies because it is formulated with a blend of natural herbal compounds that have insect repellent properties.

The only caveat is that it may not be safe for dogs that already have an allergic reaction to beef.

12. PetGuard Yeast Garlic Wafer 160 Tablets

Our rating: 6 / 10

PetGuard Yeast Garlic Wafer 160 Tablets

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Pros:

  • Contains both brewer’s yeast and garlic to treat a variety of parasites
  • Affordable option that comes with plenty of tablets

Cons:

  • Some dogs experience nausea when taking this medication
  • Contains corn … which could be an issue for those with allergies

Our top pick for the best flea pills is the PetGuard Yeast Garlic Wafer. The PetGuard Yeast Garlic Wafer combines both brewer’s yeast and garlic to treat a variety of parasites that can harm your dog or cat. This medication works well for both flea infestations and internal parasites.

It comes in a box of 160 tablets, which should be more than enough to kill all the pesky parasites troubling your precious pets.

In addition, it is very easy to administer. You can do so by either adding it into your dog’s or cat’s food or dropping one directly into your dog’s throat.

13. Advantus Soft Chew

Our rating: 6 / 10

Advantus Soft Chew

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Pros:

  • One of the safest and most effective Medications
  • Easy to administer thanks to a delicious yummy beef, liver flavor
  • Affordable

The Advantus Soft Chew Tabs come in a pack of 60 tablets of 24mcg each and are recommended for dogs under 122 pounds. Which means you can use these for dogs up to 17 inches from the ground to the withers, which is about 24.5 inches.

These tablets are recommended for use in dogs 8 weeks and older and can be used for either flea or tick control, depending on the worst problem each dog faces. The dogs will receive lasting protection by taking one tablet weekly.

The best part about these tablets is that they are a great combination of both a preventative and treatment medication. The dose of 24mcg of imidacloprid, provides an effective flea treatment for dogs. The dose however is not lethal to fleas or ticks.

14. Capstar 12Ct nitenpyram 57 Mg

Our rating: 5 / 10

Capstar 12Ct nitenpyram 57 Mg

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Pros:

  • Fast Action
  • Easy to administer
  • Very safe for both dogs and cats
  • Price

Cons:

  • Contains Nitenpyram, an Insecticide. Nowadays, nitenpyram is found in the generic product. And that's what we ordered.
  • Stop using in twelve hours if no effectiveness is observed.
  • After an hour or two, the fleas started falling off the dogs and dying. We're still using the product but we have not seen any fleas off the dogs for days since then.
  • Nitenpyram is not FDA approved in cats, however, people have used it with success.

15. Only Natural Pet Brewer's Yeast & Garlic

Our rating: 5 / 10

Only Natural Pet Brewer's Yeast & Garlic

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Pros:

  • No side effects (at least for your dog)
  • Natural, safe flea control for dogs
  • Low dosage
  • Quality manufacturer

The Only Natural Pet Brewer's Yeast & Garlic Flea Control and Prevention comes with adult flea and tick control capabilities. It doesn’t have any of the nasty side effects that other types of flea and tick preventive medications may have on you or your dog.

It also comes at a decent price, which normally doesn’t happen when you’re trying to treat your dog for fleas and ticks. You get a 100% money-back guarantee. You also get a combination of organic ingredients that are grown above any pesticides and they’re not irradiated.

This formula is specifically designed with brewer's yeast and garlic. The brewer's yeast is good for keeping your dog healthy and the garlic is an excellent flea and parasite deterrent. In addition, it’s designed to eliminate and prevent fleas and tick life cycles, which will help your dog’s fur and skin.

16. Sentry Capguard

Our rating: 5 / 10

Sentry Capguard

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Pros:

  • Safe to use
  • Reliable results
  • Cheaper alternative

Cons:

  • Not much research
  • Not available at pet stores

Our best flea pills review has to go to Sentry Capguard. One of the most affordable and effective, it has shown to work in as little as 24 hours. It is really affordable and provides a flea and tick prevention for 30 days.

This stuff is easy to use, you have to put a cap on your dog every day for 30 days and that’s it. No need to bathe your pet after putting it on him. And, you don’t have to blow your dog’s fur open after putting it on.

PETguard has shown to be safe if it’s wrongly used. You’re always urged to check the conditions of if it’s too hot or too cold (or if it rained) to go out and use it. It ain’t the best in conditions where the temperature is extremely low or high.

17. Project Paws Natural Flea and Tick Prevention

Our rating: 4 / 10

Project Paws Natural Flea and Tick Prevention

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Pros:

  • No chemicals
  • Safe for dogs of all ages

Project Paws is a natural supplement that’s tried and tested and verified to provide protection against fleas and ticks when used regularly.

While the smell can be unpleasant, it does get less noticeable over time and it can’t be compared to the hordes of dead pests your dog was dealing with previously.

On top of that, Project Paws is the kind of flea product that will never tire of killing the enemy. This is because it’s made from natural ingredients including Brewers Yeast, Garlic, and Peppermint Oil, which combine to brew a potent flea killing potion.

18. SENTRY Capguard

Our rating: 4 / 10

SENTRY Capguard

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Pros:

  • Suitable for kittens and puppies over 6 weeks
  • It can be broken to treat kittens (over 6 weeks) or puppies (2 months old and weighing more than 2lbs) for infestations in smaller area (bugged by fleas)
  • Will not adversely affect your pet’s health if they eat the product accidentally
  • Each pack contains 2 tablets which will get rid of fleas and related infestations for 1 month
  • It acts fast and kills fleas all within 12 hours of use
  • It also gets rid of flea tapeworm larvae

Cons:

  • It is not suitable for dogs weighing less than 2 pounds.

This flea and tick prevention for dogs has been carefully formulated to help prevent fleas, flea eggs, flea larvae and ticks on your dog. It uses nitenpyram to attack and gets rid of the flea life cycle by converting animal waste into a non-sustaining environment for them.

It is well tolerated with no adverse effects on your dog’s health if they accidentally eat any of the tablet.

It is safe for use on puppies younger than 6 weeks old as well as kittens, providing faster protection with results within 12 hours.

Conclusion

We’ve taken the time to review all of the best flea pills for dogs. They need to be effective in treating your dog’s fleas, and they also need to be safe. Effective flea pills should also be easy to administer. Having pills that are easy to administer to your dog could keep you from missing a dose yourself … and losing all of that flea-killing power.

Our Recommendation

NameCategoryProduct
CAPSTAR Blue FAST ACTINGBest OverallCAPSTAR Blue FAST ACTING
Nutri-Vet Brewers YeastBudget PickNutri-Vet Brewers Yeast
Capstar 12Ct nitenpyram 57 MgUpgrade PickCapstar 12Ct nitenpyram 57 Mg