Top 14 Best Flea and Tick Prevention for Dogs & Cats in 2023

Best Flea Medicine image

As the summer sets in and your pet goes out for a walk, it is likely to bring back some fleas or ticks along. Ticks are small insects that suck blood from a pet’s body. These fleas and ticks can be dangerous to the extent that they might spoil a pet’s health, sometimes even leading to death. These parasites tend to cause irritation and scratching, creating a nuisance. If not treated on time, they can rapidly become a large number as a single flea lays eggs in large numbers. Various tick and flea medicines are useful for killing these insects. Different medications help to work for different animals considering their age and weight.

To get the safest flea and tick pill for dogs and pets, you must be aware that these are treatable in various ways. You can treat your dog and cat orally or by topical treatment or many other methods depending upon its requirement. For best results, their medication should get carried out properly with proper dosage and repetition as necessary. Consulting a vet before starting with the procedure would aid you through the process and help you develop a great result-orienting method. Make sure whatever treatment you will feed a pet with is safe and does not pose any health threat or lead to any side effects.

Best Over The Counter Flea Medicine For Pets Reviewed by Experts

Treating fleas and ticks is not that easy unless you come up with a product that gives you all excellent results. With multiple options available in the market, it becomes a hard nut to crack in picking a suitable one. Checking out various dog flea and tick medicine reviews will help to serve you well. And for this, we have come up with the top product list for your cat or dog that will bring you efficient results.

14 Best Flea Medicine For Dogs and Cats in 2023


Capstar CA4925Y07AMZ1 26-125 lbs Fast-Acting Oral Flea Treatment for Dogs image

Capstar Nitenpyram Oral Flea Treatment

  • Easy Oral Delivery
  • Kills adult fleas
  • Effective Relief in 1 Dose
Pets Stars Image

Average Review 9.9


Hartz Plus 3270010844 UltraGuard Flea and Tick Topical Prevention for Cats and Kittens 5 lbs and over image

Hartz UltraGuard Plus Drops

  • Lasts for 30 days
  • 3 Monthly Treatments
  • Full Body Protection
Pets Stars Image

Average Review 9.8


Frontline Plus P004FLTSP-0-22 Flea and Tick Treatment 5-22 Pounds 3 Doses for Small Dogs image

Frontline Plus for Dogs

  • Breaks Flea Life Cycle
  • Long Lasting Formula
  • Kills fleas and ticks
Pets Stars Image

Average Review 9.8


Advantage II 86145847 Flea Prevention and Treatment Over 9 Pounds for Large Cats image

Advantage II Flea Prevention

  • Easy to apply
  • Vet Recommended
  • Kills fleas in multiple life stages
Pets Stars Image

Average Review 9.7


Capstar Fast-Acting Oral Flea Treatment 6 Doses, 11.4mg (2-25 Lbs) for Cats image

Capstar Nitenpyram Cat Oral Flea Treatment

  • No Prescription Needed
  • Treat Re Infestations Fast
  • Kills fleas in 30 mintutes
Pets Stars Image

Average Review 9.7


K9 Advantix II 86314940 Flea and Tick Prevention 21-55 Pounds for Large Dogs 2-Pack image

K9 Advantix II Flea & Tick Prevention

  • Waterproof after 24 hours
  • 2 monthly applications
  • Easy to apply topical formula
Pets Stars Image

Average Review 9.6


Frontline Plus FL287410 Flea and Tick Treatment for Cats image

Frontline Plus for Cats

  • Break the flea life cycle
  • Long-lasting protection
  • Kills fleas and ticks
Pets Stars Image

Average Review 9.5


Cheristin CA459084WAM Topical Flea Prevention for Cats image

Cheristin for Cats

  • Long-lasting treatment
  • Quick Drying
  • Easy application
Pets Stars Image

Average Review 9.5


PetArmor Plus 5310 Fast-Acting Topical Flea and Tick Prevention for Dogs image

PetArmor Plus Flea & Tick Protection

  • Breaks the Flea Cycle
  • Easy to Use
  • Vet-Quality Protection
Pets Stars Image

Average Review 9.4


Advecta Plus 960050060004 Flea Squeeze on 4-Month Supply for Large Cats image

Advecta II Plus for Cats

  • Kills Fleas within 12 Hours
  • Waterproof, Fragrance Free
  • Easy to Apply Topical Solutions
Pets Stars Image

Average Review 9.3


K9 Advantix II 86315017 Flea and Tick Prevention for Extra-Large Dogs 1-Pack 4 Monthly Doses Over 55 Pounds image

K9 Advantix II Flea and Tick Prevention

  • 4 monthly applications
  • Starts within 12 hours
  • Vet-recommended
Pets Stars Image

Average Review 9.2


Advantus (Imidacloprid) 85274414 7-Count 23-110 Pounds Large Dog Flea Chewable Treatment for Dogs image

Advantus Imidacloprid Flea Chews

  • Savory soft chew
  • Safe and effective flea treatment
  • Kills fleas within one hour
Pets Stars Image

Average Review 9.1


Farnam Flys Off 100532971 Fly Repellent Ointment (7 oz) for Dogs image

Farnam Flys Off Fly Repellent Ointment

  • Works for all flies
  • Freat for healing
  • Easy to apply
Pets Stars Image

Average Review 9.0


Advecta 960050310004 Ultra Flea _ Tick Topical Treatment for Dogs image

Advecta Ultra for Dogs

  • Breaks Flea Life Cycle
  • 5 Way Protection
  • Waterproof solution
Pets Stars Image

Average Review 9.0

1. Capstar Fast-Acting Oral Flea Treatment for Dogs

What We Like?

  • Kills 90% in 4-6 hours
  • Suitable for all dogs
  • Easy to feed orally
  • Kills adult fleas
  • Quick results

Preventing your pet from getting infected with fleas becomes a prime responsibility for their owners. Capstar oral flea treatment is a simple method to cure ticks that aid you well, and it is feedable well along with other medicines. These best flea pill for dogs starts working quite fast in just 30 minutes. Individuals could supply it orally, thus not demanding much effort for making and getting satisfactory results within no time.

Best thing about Capstar’s oral flea and tick medication is that it offers necessary supplies to dogs and cats without the need for any vet prescription. Meaning it is completely safe to use without any compromise in its efficiency. These flea tablets for dogs are useful to kill adult fleas in no time. The 57 mg tablet is safe to feed for felines and puppies of 25-125 lbs, age 4 weeks or older doggos. It will not have any side effects on dogs, allowing it for usage without any worries. Capstar’s powerful tablet does not require any rubbing off or creates any mess and can show an effective relief in 1 dose. Moreover, a single dose of this medicine can kill 90% of adult fleas within 4 hours for puppers and 6 hours for cats.

2. Hartz UltraGuard Plus Topical Flea and Tick Prevention for Cats

What We Like?

  • Prevents re-infestation for 30 days
  • For pets 12 weeks and older 
  • Fast and rapid acting
  • Full body protection
  • 3-month treatment

While reviewing this best flea medicine for cats without vet prescription, we learned that it quickly kills all bugs, including their eggs, without any side effects. Hartz UltraGuard topical flea treatment is a perfect savior against fleas and ticks for cats and kittens. We were satisfied to see that this flea tick medicine comes equipped with a topical formula that stays on animals’ bodies and does not rub off. It works on cats and kittens of 12 weeks or older or for pets weighing 5lbs and above. Hartz’s 30-day continuous medication helps to protect not only animals but also prevent parasites from spreading in houses.

Being a highly efficient medicine, Hartz UltraGuard topical flea treatment kills all insects and mosquitoes with rapid action in just 15 minutes. It helps to prevent re-infestation for up to 30 days by killing all bugs, ticks, and larvae. Hartz’s trusted ultra guard flea therapy is one of the best topical flea treatments that are useful for your paw companions. Providing 3-monthly treatments, you can be sure of making your dear mates completely flea and tick-free, thereby keeping houses safe. No doubt, it becomes a top choice for many pet owners who completely rely on it.

3. Frontline Plus Flea and Tick Treatment for Dogs

What We Like?

  • Best for animals 8 weeks and older
  • Waterproof and efficient
  • Good for 5-22lbs dogs
  • Breaks the flea cycle
  • Long-lasting effects
  • 30-days protection

Destroying all eggs and adult fleas prevents new flea growth, thus hindering their rapid production rate. And that is precisely possible by Frontline’s Plus Flea and tick treatment. Frontline Plus dog medicine is useful comfortably for dogs of 5-22 lbs. This one is a quick, efficient, and fast-acting treatment to control the action of fleas on all canines and cats. It helps treat dogs well by breaking a flea chain killing all adult fleas, eggs, and larvae.

Frontline’s Plus Flea and tick treatment is a trusted flea medicine that is capable enough to destroy all bugs, ticks, and their eggs. It also works well in eliminating those that transmit Lyme disease. Frontline’s best puppy flea treatment comprises 2 tough killing ingredients, fipronil and (S)-methoprene. Those ingredients kill adult parasites and also their eggs and larvae. Its long-lasting 3-dose formula gives protection to canines and felines for a full 30-days. This one gets assorted in a feline’s oil glands serving them greatly for a good amount of time. One can directly apply this solution to an animal’s skin and thus becomes easy to use. This is what makes it a comfortable product for all individuals.

4. Advantage II Flea Prevention and Treatment for Large Cats

What We Like?

  • For cats over 9 pounds
  • Works through contact
  • Works within 12 hours
  • Free from fragrance 
  • Kills multiple stages
  • 30 days protection

Looking for a product that would help large cats get rid of fleas and ticks? Well, go for Advantage II flea treatment. It works well for large cats over 9 pounds with a 1-month continuous supply. This Advantage II tick preventing medicine works through contact and thus stops fleas from biting a feline. Therefore, it offers effective and efficient results in a little time for all people. This easy-to-apply treatment starts working within 12 hours as soon as people apply it to their fur mates. Besides, it protects dogs and cats for up to 30 days. Undoubtedly, in our analysis, this solution gave great results.

To bring an end to the flea cycle, Advantage’s II cat licked flea medicine helps to kill bugs in all stages, starting from eggs, larvae to adults. This caters to breaking the chain leading to complete disruption of these insects. Various vets recommend it for cats, and thus, Advantage’s II becomes a cheap flea therapy for cats. Since it is free from all kinds of fragrances, it works well, especially for cats with allergic reactions. This 1-dose solution comes out to be an efficient one in fulfilling all animal requirements yielding productive results.

5. Capstar Fast-Acting Oral Flea Treatment for Cats

What We Like?

  • For cats between 2-25 lbs
  • Starts working in 30 min
  • Fast and efficient results
  • 6-tablets per box
  • Oral medication

Controlling the multiplication of fleas becomes challenging as they grow at a very fast rate. To help you with the same, Capstar’s flea pill for cats is perfect for yielding results. While testing it out, we could see that this oral tablet delivers individuals a quick response and starts working in just 30 minutes. Dead fleas in our observation started falling off rapidly in front of our eyes as soon as we gave them to cats. For those who look for the best flea medicine for cats without vet prescription, this one becomes a great solution.

Capstar’s flea treatment incorporates 6 doses for kitties weighing 2-25 (11.4mg) and gives money-worthy results. In case a feline gets re-infested with bugs, one can very comfortably repeat its dose with the frequency of once per day. This drug is completely safe to use without any side effects, but one must take care by keeping it out of reach of children. Providing one tablet would kill 90% of bugs, making it one of the best flea and tick meds for kittens. Since one has to feed it to their pets, it becomes easy to use and does not require much effort, reducing all fuss and mess.

6. K9 Advantix II Flea and Tick Prevention for Large Dogs

What We Like?

  • For dogs of 21-55 pounds 
  • Waterproof upto 24 hours
  • Easy to apply on animals
  • Works within 12 hours
  • 2 monthly applications
  • Vet recommended

K9’s Advantix treatment for dogs is a great cure for fleas and ticks that would serve a dog well. We investigated the product in detail and concluded it worked through contact, looking forward to its features and suitability. This restricts all fleas, ticks, and mosquitoes from biting a canine to die, making it less painful for him. It works well for canines weighing 21-55 pounds and provides 2 monthly applications. Dog flea treatment from K9 becomes easier to apply and requires lesser efforts to be made. This is what makes it a perfect choice for people who own picky fur companions.

As soon as you feed your pet with this medicine, it starts working within 12 hours and works well to kill all insects for 30 days. Apart from all that, K9’s Advantix prescription flea medicine does not pose any threat to a pet’s health. This is a perfect choice for large puppers to have a year-round safest flea treatment for dogs. And thus, it becomes the best flea and tick treatment for dogs. No doubt, it yields good consequences helping your loyal companion get rid of its bugs.

7. Frontline Plus Flea and Tick Treatment for Cats

What We Like?

  • Fipronil and (S)-methoprene as ingredients
  • For cats and kittens 1.5 lbs and over
  • Waterproof and long-lasting
  • 3-dose supply for 3 months
  • 30 days protection
  • Breaks flea cycle

Figuring out the product for its consequences, we noticed that it is a waterproof treatment and gives results even if pets get wet. Frontline’s Plus flea treatment for cats offers an efficient cure in breaking flea’s cycle. Thus, it kills ticks, their eggs, and even larvae, preventing new bug’s establishment. We also got satisfied with its long-lasting performance giving us fast and effective results to treat a cat well. In addition to this, it gave us the ease of using it for cats weighing 1.5 lbs and over. Frontline’s best kittens flea medicine arrives formulated for staying in oil glands of the cat skin that provides flea and tick protection for a full 30 days.

Frontline’s Plus flea treatment for cats arrives made up of 2 major ingredients that aid in bug treatment and give satisfactory outcomes. Just like any other famous brand, most vets recommend it. Meaning we can say that it becomes safe to use and does not impose any harm on a dog’s health. One can very conveniently use it for cats and kittens of 8 weeks and older. This perfect treatment meant for killing fleas and ticks can eradicate those that can transmit Lyme. By offering faster consequences, this one helps in helping a feline with more bugs.

8. Cheristin for Cats Topical Flea Treatment

What We Like?

  • Kills 98-100% flea in 12 hours
  • Easy to apply with round tip
  • Starts working in 30 mins
  • No environmental threat
  • Fast and quick to use

Before anything, it features the capability of killing bugs and ticks in just 30 minutes and delivers long-lasting performance. Cheristin’s flea treatment is trusted for cats only, as many vets suggest it to them. Also, it helps give relief to a cat in just 12 hours, killing about 98%-100% of bugs without any compromise. Equipped with a rounded tip, it becomes easy for people to apply it on their kitties’ skin without any difficulty. It is a quick-drying, non-greasy topical solution that works smoothly and effortlessly, coming up with satisfying results.

Getting a single dose of Cheristin’s flea treatment would last for about 6 weeks comfortably, and it is best to apply it monthly for better results. One dose size is an ideal pick for cats and kittens of size 1.8 lbs and above and 8 weeks or more. And thus, people would not face any issues while using it. Since this solution comes made of premium quality ingredients, it does not pose any threat to the environment or a kitten’s body. This is what makes it one of the best flea medicine for kittens that gives good aftermath.

9. PetArmor Plus for Dogs Flea and Tick Prevention

What We Like?

  • Starts working in 24 hours
  • Prevents lyme transmit
  • Breaks flea cycle
  • Waterproof 
  • Easy to use

PetArmor’s flea and tick treatment is a great choice to prevent dogs from flea action. Its reliability with water makes your purchase worth it. Apart from being waterproof, it effectively kills fleas, eggs, larvae, ticks, and chewing larvae. Thus, this one eliminates parasites of all ages. Besides, it aims to work well for up to 30 days which is a great thing. Since this one contains fipronil and (S)-methoprene, it commences its work just within 24 hours. PetArmor’s best flea control for dogs offers 100% results by breaking a lice life cycle as it destroys all eggs and larvae.

PetArmor’s flea treatment arrives with 6-waterproof topical applications that offer control over insects for 6 months. By killing all eggs and larvae helps to prevent re-infestation and keeps a canine or cat secure. This long-lasting and easy-to-use product, therefore, becomes the best flea and tick medicine for dogs. PetArmor’s advanced flea protection for dogs keeps your puppy safe from brown ticks, American dog ticks, Lone Star Ticks, and Deer Ticks. Furthermore, the prevention of such deadly bugs will maximize any chance for Lyme transmission.

10. Advecta Plus Flea Squeeze-On for Cats

What We Like?

  • Best for cats of 8 weeks older
  • Lasts long and resists water
  • Efficient ingredients
  • Breaks the chain
  • Fragrance-free
  • Easy to apply

Apart from all those regular medications for getting rid of fleas, this one kills in just 12 hours after applying. Advecta’s Plus flea treatment kills not only fleas but also eggs and larvae effectively. Thus, it helps to break the cycle completely and prevents re-infestation of fleas in felines. Being a cheap flea medicine for cats, it has active ingredients as pyriproxyfen & imidacloprid. These ingredients arrive formulated in many top flea and tick medicines, making this suitable for the best results. All in all, this one offers high-quality results without any compromise.

Advecta flea medication is efficient in preventing reinfestation for up to 4-months. Individuals can apply the pet flea and tick control treatment on their paw mates with great comfort. Besides, it comes as a topical solution without being harmful to animals in any way. This flea therapy is waterproof and free from fragrance, thus catering to its use without any side effects. Since it does not require any efforts in killing fleas, it becomes an easy-to-use product apart from causing no harm. Also, it is available at a reasonable price.

11. K9 Advantix II Flea and Tick Prevention for Extra-Large Dogs

What We Like?

  • For dogs of 55 pounds or more
  • Applicable for all stages 
  • 4-monthly applications
  • Hassle-free application
  • Starts within 12 hours
  • No contact working

Fleas and ticks have always been creating problems for your furry companions that become quite troublesome for them. To treat the same, K9 Advantix II dog flea and tick prevention is a great usage that provides all good relief only for dogs. This flea treatment works through contact and prevents ticks and mosquitoes from biting our loyal mates. Undoubtedly this best dog flea treatment gave us better results as compared to any other product for up to 30 days. The best flea medicine renders 4-monthly applications, which one can use comfortably for large puppers weighing 55 pounds or more.

K9 Advantix II flea and tick medication appear with an easy-to-apply formula demanding little effort from people. This comes out to be the best dog flea medicine for year-round treatment against flea and ticks, especially for large mongrels. Moreover, all vets suggest it for canines with insect issues. So, one can purchase it without any second thought, worrying about the product’s safety. While reviewing it, we checked out its composition in detail and came to know that this one does not pose any health issues or side effects. Meaning individuals can use it conveniently on their loyal friends. Apart from fleas, it kills mosquitoes, ticks, chewing lice along eggs and larvae.

12. Advantus Imidacloprid Large Dog Flea Chewables

What We Like?

  • Starts working within an hour
  • For dogs 23-110 pounds
  • Savory flavored chew
  • Safe to repeat
  • 7 soft chews

Treating your dog for fleas and ticks can never be easier than Advantus tasty chewable tablet. This flea chewables contains 7 soft pills for dogs without a vet prescription that work well for large canines. Reviewing the product, we were surprised to see that a single dose killed adult fleas on a dog. The treatment begins showing results in 1 hour without any delay. This chewable flea and tick medicine for dogs is safe to use and is repeatable up to once per day as required. Yielding satisfactory results never lets you compromise with the quality you want.

Advantus flea treatment is suitable for treating canines and puppies of age 10 weeks and older without any risk to health. These savory soft chewable pills are convenient to use, and your paw mates can comfortably live without any prescription. Also, since it comes flavored and is soft to eat, canines will never turn their faces away from this. It serves as a treat to mongrels that they can easily chew without any issues. This is what makes it the best over the counter flea medicine for dogs that individuals will love to buy for their four-legged buddies.

13. Farnam Flys-off Fly Repellent Ointment for Dogs

What We Like?

  • Repels house, stable, horn and face flies
  • Applicable around wounds or sores
  • Heals wounds fast
  • Works for all flies
  • Easy to apply
  • For all stages

Flies can irritate animals to a very great extent leading to their annoyance. Farnam’s fly-off ointment can help you protect dogs, horses, or ponies from getting tortured by flies. Our experts, in their analysis, found that this efficient ointment works well for house flies, stable flies, face flies, and horn flies. Repelling flies again and again manually becomes challenging, and so this serves our purpose well. Moreover, one can simply apply it to any animal’s wounds and sores, and it works well. It did not involve any complexity while using or in its complexity. It keeps all kinds of flies away from our fur companions, which helps them to rest comfortably and peacefully.

Farnam’s fly-off ointment is an efficient smart solution around wounds, sores, and other sensitive areas. Therefore, it aids in preventing any survival of flies from reaching that area. It can sometimes even kill house flies, stable flies, and face flies. Keeping such bugs away assists in healing wounds quicker and faster, letting the sore or wound alone. This one, thus, gives a peaceful environment to a dog, especially when in a kennel. It’s because the constant haunting of flies might trouble animals a lot that won’t allow them to keep calm. So this ointment would work well for him, keeping all kinds of flies away.

14. Advecta Ultra Flea & Tick Topical Treatment

What We Like?

  • Prevents re-infestation for 4 months
  • Starts working within 12 hours
  • Waterproof and fragrance free
  • Provides 5-way protection
  • Breaks flea cycle

Those looking for effective flea treatment for their dogs can go for Advecta’s topical flea treatment which would work well for them. This topical treatment for puppers is efficient enough to break a lice cycle. It kills all stages of fleas, including eggs and larvae, in no time. This helps to break the chain of ticks reproduction and prevents their growth. It contains all major active ingredients, like pyriproxyfen & imidacloprid, that resolve issues of bugs. Undoubtedly, this becomes one of the best flea prevention for dogs, aiding pets in leading a comfortable life. This Advecta ultra flea treatment starts working within 12 hours of application and would prevent re-infestation for up to 4 months.

Reviewing the product, we noticed that this medication is free from any kind of fragrance or additives, and thus it becomes harmless to pets. It offered us worry-free usage without compromising our pet’s health. Being waterproof, it works satisfactorily even when a pupper gets wet. Equipped with 5-way protection, it helps to prevent fleas, ticks, mosquitoes, lice, and biting flies. Moreover, it doesn’t pose any threat to an animal’s health. This long-lasting medicine would work well for 30 days giving praise-worthy aftermath.

Safest Flea Treatment For Dogs & Cats Buying Guide

Before buying flea medicine for your paw mates, you must be well aware of what kinds are available. Apart from that, one must conduct proper research in knowing which one will suit their dogs and cats well. How flea medication works and how it affects a pet is of utmost importance to be aware of. Without any adequate knowledge, a tick prevention medication can lead to varied results that might even be harmful to a pet. So, in order to get the best puppy flea medicine to refer to our buying guide.

Why Should You Buy Flea Medicine?

As climatic conditions turn a little warmer, fleas’ and ticks’ emergence starts in large numbers. Preventing a canine or feline from fleas becomes the priority task as summers set in. These bugs can lead to a greater nuisance that might trouble your furry animal. Fleas are small insects that are likely to trouble a dog or cat to a much greater insect. They get transmitted simply when a pupper is out for a walk. These parasites feed on blood, making a home in an animal’s fur leading to serious long-term consequences.

To prevent such parasites’ survival, flea and tick medication comes into aid. Otherwise, excess growth of fleas and ticks may lead to severe diseases in animals. These bugs can be dangerous to a pet to the extent that they might fall sick. If not controlled timely, it can lead to anemia and intense itching in these fur creatures that can be troublesome. Flea and tick control for dogs and cats thus becomes a great necessity.

How Does Flea Medicine Work?

Fleas are treatable with various methods like spot-on treatment or oral medications to animals that got affected. In case of spot-on treatment, individuals should apply a specific therapy on their fur buddies’ bodies where they couldn’t reach with their mouths. Insect neurotoxins are active ingredients that stop any infestation of fleas and ticks by attacking them. It poisons every insect quickly and makes them incapable of spreading. Though this chemical is harmful to insects, it is safe to use for any affected animals.

How Does Oral Flea Medicine Work?

Oral flea medicine comes as chewable pills that are ingestible by a pet comfortably. Meaning no more hassle of spreading or applying a medicine. When a tick bites your fluff mate, the therapy gets transmitted to that parasite and poisons it to death. Furthermore, certain oral medications get absorbed into an animal’s bloodstream. So whenever a bug bites, its nervous system will get affected, leading to its death. Besides, oral medication ingredients are slowly excreted through a dog’s or cat’s metabolism leading to long-lasting performance.

Does Flea Medicine Expire?

Flea medications don’t arrive with any expiry date. However, they appear stamped with their manufactured date and their effective usage for up to 2 years, in general. Meaning, individuals can still use them, but their potential in killing insects is not so good and reduced. Apart from that, do note to see where such a manufacturing date is present. If it is present on a medication’s box, then that means no seller should sell it after its expiry date.

What to Do If Flea Medicine Doesn’t Work?

Different flea medicine for dogs and cats work differently and yield different results. A person is likely to face some issues when starting the treatment first and might not get satisfactory results. No worries, you can reapply a flea medicine and repeat its entire process of application. If the problem persists, then there might be a few reasons that are holding back satisfactory consequences. It might be possible that you are not applying a therapy properly or correctly, so you need to recheck it once. Also, if a flea medicine becomes too old, it may become ineffective and thus, not give good results. If you are unable to locate an actual source of fleas and ticks then also you are likely to continue facing such problems.

How Long Does it Take for Flea Medicine to Work?

Various flea and tick meds are available in the market. And a pet can be treatable in a number of ways. However, the desired results depend on what type of treatment a person is employing. Many oral treatments would start working in 30 minutes to 1 hour. In case of a spot-on treatment, it yields results in 24 hours. Most therapies kill fleas in 24 hours which reduces any chances of these eggs. Certain oral pills are quite effective that show effects immediately as a dog swallows them.

Flea and Tick Treatment Methods

Topical Flea Medicine

It is also popular as a “spot-on” method that works well for flea and tick control. When applied in between a pet’s shoulder blades, this medication can get licked off by them. Moreover, these medications generally last for a month, sometimes by killing and sometimes by repelling mosquitoes.

Flea Collars

Flea collars work in 2 ways, either they emit toxic gas, or they might get absorbed into a subcutaneous fat layer of affected animals. Toxic gas works for the area immediately, like a neck or head. Flea collars work well for adult ticks but do not give efficient results for larvae.

Chewable Flea Medicine

Chewable flea medicine for dogs and cats helps to provide prevention against insects on a complete body. To help a pet chew easily, these are soft and flavored so that a dog and cat might not refuse them. After they get ingested, when insects bite a pet, they get infected by those infused toxins and might die.

Flea Pills

Flea pills are efficient methods to treat fleas and ticks. These tablets stop larvae, eggs, and even adults. They provide protection for an animal’s entire body. Besides, every dog or cat will happily feed on them. It does not need any application in a particular area or spot.

Flea Shampoos

This method works great on adult fleas, especially when a large number of fleas are visible on animals’ bodies. Most flea shampoos are only effective for a day or 2 and require repetitive treatment. However, it does not give people long-lasting control against fleas and is not a long-term solution.

Flea Sprays

Being an efficient method of killing fleas and ticks, these sprays kill fleas and ticks on contact. To make it more effective, they are usually high on alcohol content and might show some side effects on certain pets. Some flea and tick spray for dogs & cats are usable alongside topical treatments, and some work over an extended period of time, preventing eggs from hatching.

Oral Vs. Topical Flea Medicine Treatments

Oral flea pills are quite easier and give many efficient outcomes as compared to topical flea medications. These are feedable by your paw mates easily without demanding any effort. This kind of treatment provides full-body protection to them. As a flea or tick bites a pet, they get poisoned by toxins and die. In case of topical or spot-on methods, it is a little time-consuming as it calls for only application on a particular spot. One must take care while choosing such spots where a pet is not able to lick that solution. They might also lead to certain skin issues if your fur companions do not respond positively to this therapy. Besides, compared to oral pills, these topical medicines are a little cheaper. Hope those who wonder “should I choose an oral or topical dog flea medicine?” have got their answer with this info.

What Kind of Flea Medicine for Puppies?

Treating fleas and ticks on pups can be challenging as flea and tick medicines used for large dogs might not be suitable for them. Most flea medicines are best for dogs when they reach the age of 7-8 weeks. Before you pick any therapy, check its suitability based on your pupper’s age. Some flea solutions from brands like Capstar would also solve your little purpose as they are feedable to pups of 4 weeks.

Side Effects of Flea Medicine for Cats

If a cat is not responding to flea medicine positively, then it might result in some side effects that can be harmful to its health. Certain major issues that might occur due to wrong medicine can be drooling, vomiting, diarrhea, unrest, tremors, lethargy. In some cases, it also leads to weakness, incoordination, hypothermia, hyperthermia, dyspnea (labored breathing), and seizures. Felines get irritated as a result of which they start losing their energy. Also, certain medications may lead to disruption of the nervous system and might result in fatal health problems.

What to Look for While Buying a Flea Medicine?

Getting flea or tick medicine for your fluff companions becomes a great necessity as it might yield disastrous results if not treated timely. Checking various flea and tick prevention reviews would surely help you, but you still need to look for certain features that decide your purchase. Such features are as follows:

Pet Age

Primary factor that rules a purchase is a pet’s age. If you own a small puppy or young dog, then you should check for the age criteria labeled on a flea product. All medicines do not work well for all ages, so you need to pick up the product that fulfills your dog or cat age criteria.


Which breed your pet belongs to also helps you to decide what medicine or what type of treatment would work well. If you have a dog of any such breed who has thick coats, then taking up a topical treatment for them will not solve the issues. Ensure whatever type of treatment or product you are going to buy suits your dog or cat.

Pet Health

If you are feeding a pet with any other medications or supplements, then you might consider it before buying flea medicine. Also, any health disorders, previous histories, or allergies need consideration. Various drugs make use of different ingredients, and they might react in different ways in a pet’s body. So, it becomes necessary to take into consideration all the health histories of a pet.

Type of Parasites

Area you are living in might be prone to different types of parasites. Before picking up medicine, make sure to check well that it serves the purpose of what you are buying. Different parasites are treatable with different therapies, so the type of a pill or solution you are going to buy will largely depend upon those areas you are living.

Before making a final decision for your pet, you must always consult your vet regarding medication. Vets can efficiently decide what kind of treatment will serve a doggo or feline aptly. Also, various vet-recommended medicines are ones with high quality and do not pose any health threats.

Frequently Ask Question

Where to buy flea medicine?

Flea medicine is available to purchase from any pharmacies or e-commerce stores like amazon.

How much does flea and tick medicine cost?

An average flea medicine would cost about $50 for a 3 month supply.

What is the best flea medicine for dogs?

K9 Advantix flea medicine is the best flea medicine for dogs.

What is the best flea medicine for cats?

Advantage II flea medicine is the best flea medicine for cats without vet prescription.

How fast does flea medicine work?

A flea medicine can start working in 30 minutes to 1 hour.

Where to put flea medicine on a cat?

Put flea medicine on a cat’s skin after clearing its fur with your fingers. Ensure to put this solution on your feline’s body areas where it cannot reach to lick.

What happens if a cat licks flea medicine?

If a cat licks its flea medicine, that bitter taste might lead to nausea or vomiting in it, which needs immediate consultation with a vet.

How long does flea medicine last?

A flea medicine can last from 8 – 10 weeks based.


Taking care of your pet in all aspects becomes a priority, including fleas and tick infestation. Flea and tick growth is quite rapid and thus demands immediate action for taking. These insects, though minute and small, lead to troublesome results for your fur mates. Thus, one has to adopt various treatment methods to prevent multiplying of fleas and ticks. Get a product that features some basic criteria and gives you desired results. Our best flea medicine for pets list and buying guide will aid you in reaching an ideal product for your pet.