Protecting your feline's health begins with the best flea and tick treatments for cats. During my eight years as a veterinary assistant in animal hospitals, I helped treat hundreds of cats with fleas. I saw how severe flea infestations can cause painful skin damage, allergic reactions, and even anemia from blood loss. Fleas can also transmit parasites, such as tapeworms, and spread diseases that can harm both pets and people.
Thankfully, veterinarian-approved flea treatments are safe and effective, and many also protect against parasites such as ticks, worms, and lice. My top recommendation for a prescription topical treatment is Revolution Plus. In addition to eliminating fleas and ticks, it also protects against heartworms, roundworms, hookworms, ear mites, and tapeworms. If you're looking for an over-the-counter (OTC) flea medicine available without a vet prescription, Frontline Plus for Cats is an excellent choice. It's easy to apply and targets fleas at every life stage, as well as ticks and chewing lice.
Before you give your cat any flea treatment, it's important to talk to your veterinarian. They can help you choose the best medication based on your cat's temperament, lifestyle, and the specific parasites most common in your area. It's critical to never use a product labeled only for dogs on your cat. These products can make cats seriously ill, and, in some cases, can even be fatal.
Read more about how Business Insider Reviews tests and researches pet products.
Our top picks for the best flea and tick treatments for cats
| Our pick | Medication | Prescription |
| Topical flea, tick, and heartworm prevention | Revolution Plus Topical Solution - $23+ per dose at Chewy | Yes |
| Topical flea and tick prevention | Frontline Plus for Cats - $11+ per dose at Chewy | No |
| Fast-acting flea control pill | Comfortis Chewable Tablets for Cats and Dogs - $21 per dose at Chewy | Yes |
| Collar for fleas and ticks | Seresto Flea and Tick Collar for Cats - $58 at Chewy | No |
| Flea pill for kittens | Capstar Tablets - $6+ per dose at Chewy | No |
Best topical overall
Safe for use in kittens as young as 8 weeks, Revolution Plus Topical Solution treats, controls, and prevents more parasites than any other topical product, including roundworms, hookworms, heartworms, fleas, ticks, and mites.
What we like
What we don't like
Revolution Plus Topical Solution is a prescription medicine that protects cats from a wide range of parasites. It kills adult fleas before they can lay eggs and prevents tapeworm infections by killing fleas before they can transmit them to your cat. It also prevents heartworms and treats and controls ear mites, roundworms, hookworms, and lone star, black-legged (deer), Gulf Coast, and American dog ticks.
Dr. Ashley Bourgeois, a board-certified veterinary dermatologist at Animal Dermatology Clinic, recommends Revolution Plus because its active ingredients (selamectin and sarolaner) are very effective and well-tolerated by cats. However, depending on where you live and your cat's lifestyle, your veterinarian might suggest an alternative, such as NexGard Combo.
Dr. Kelley Lay, a veterinarian in Nashville, Tennessee, has prescribed NexGard Combo and worked with pet owners already using it. The main differences between the two products lie in the number of tick species killed and tapeworm control. Revolution Plus kills four tick species and helps prevent tapeworm infections by eliminating fleas before they can transmit the parasite. NexGard Combo, on the other hand, kills two tick species but includes an ingredient that treats existing tapeworm infections.
"I like the active ingredients and, therefore, coverage of both, and I feel that both are highly effective at controlling fleas and ticks," Lay says. She finds Revolution Plus is more effective for tick control in areas with heavy tick populations. However, for outdoor cats with a history of flea infestations or frequent hunters who are more likely to get tapeworms, she may lean toward NexGard Combo.
Revolution Plus is easy to apply every 30 days directly to a cat's skin at the base of their neck between the shoulder blades. The liquid absorbs and dries quickly, leaving no residue. Unlike some topical preventives, there's no need to wear gloves during application, and you don't have to avoid touching your cat afterward. If you get it on your skin, simply wash it off with soap and water.
You'll need a prescription from your vet to purchase Revolution Plus, and it should be used with caution in cats with a history of neurological conditions, such as seizures.
Best OTC topical
Available without a prescription, Frontline Plus kills adult fleas, flea eggs, flea larvae, ticks, and chewing lice.
What we like
What we don't like
I chose Frontline Plus as the best flea and tick treatment for cats without a vet prescription because it not only eliminates fleas and controls flea infestations, but it also kills four species of ticks (brown dog ticks, lone star ticks, deer ticks, and American dog ticks), as well as chewing lice. One application of this topical medicine provides protection for 30 days, and fleas don't need to bite your cat for it to work — fleas die on contact.
Frontline Plus contains two active ingredients that kill parasites and break the flea life cycle: fipronil and S-methoprene. Fipronil kills adult fleas and ticks, while S-methoprene disrupts the flea cycle by preventing the development of eggs, larvae, and pupae. It may take a little time of consistent use to fully eliminate fleas, especially in heavy infestations, since flea eggs can still be present in your home after treatment, Bourgeois says.
Frontline Plus is easy to use. Just squeeze the contents of the tube onto a single spot on your cat's skin between the shoulder blades. The liquid medication spreads across your cat's skin and gets stored in their oil glands. It then self-distributes continuously through the hair follicles over the course of the month.
Keep in mind that Frontline Plus does not treat worms. For that, you'll need one of the best cat dewormers.
Best fast-acting
Comfortis Chewable Tablets start killing fleas within 30 minutes and offer an entire month of protection with one easy-to-give flavored pill.
What we like
What we don't like
Comfortis Chewable Tablets are fast-acting and good for cats that can't tolerate topical flea preventives. Spinosad, the active ingredient in Comfortis, starts to work within 30 minutes and kills 98% of adult fleas within four hours.
Topical flea control products are typically easier to use because there's no need to convince your cat to swallow a pill. However, there are some cases when an oral preventive is an ideal choice among the best flea treatments for cats. For instance, some cats with sensitive skin can't tolerate a spot-on treatment. "Comfortis is one of the ones I like," says Dr. Keith Harper, a veterinarian at Hayward Veterinary Hospital. "It's harder to get the cat to take an oral product, but if you can manage it, it's a pretty effective oral flea medication. It's strictly and solely for fleas."
Comfortis is one of three oral flea control products available for cats; the others are Capstar Flea Control Tablets and Credelio CAT. Unlike Capstar, which kills fleas for only 24 hours, Comfortis protects cats against fleas for an entire month. However, Comfortis is not safe for kittens younger than 14 weeks old, while Capstar is safe for kittens as young as 4 weeks old. Like Comfortis, Credelio kills fleas for 30 days but it takes a little longer to work — 6 hours to start killing adult fleas compared to just 30 minutes for Comfortis. However, Credelio also kills one species of tick (black-legged), so if your cat needs protection from ticks as well as fleas, Credelio might be a better choice.
Give your cat one of the beef-flavored tablets once a month. You can give them the tablet just before or after feeding your cat or hide it in a small amount of food. To purchase Comfortis, you will need a prescription from your veterinarian.
Best collar
The Seresto Flea and Tick Collar offers eight months of protection against fleas and ticks in all life stages.
What we like
What we don't like
Editor's note: In March 2021, USA Today and the Midwest Center for Investigative Reporting published a report alleging that the Seresto flea collar was linked to thousands of adverse incidents in pets and humans. The EPA reviewed the safety of the Seresto collar and says Seresto manufacturer Elanco has agreed to implement measures to alert veterinarians and pet owners of potential risks, such as malfunction of the collar resulting in strangulation. “For all other deaths, EPA did not identify cases with a probable or definite association between collar use and death, often due to other factors impacting the animal, such as an existing medical condition,” the release says, adding that the rate of deaths was similar to that found for other pet products it has reviewed. The EPA has limited the collar’s registration to five years and will continue to evaluate incident data during that time.
Your veterinarian can provide additional safety guidance. If your pet has an adverse reaction, immediately remove the collar and call your veterinarian. Tim Carroll, EPA's press secretary, also advises pet owners to contact the National Pesticide Information Center and report adverse reactions to the EPA. Purchase a Seresto collar only from a reputable online retailer, brick-and-mortar store with a guarantee program, or your veterinarian. Before placing the collar on your cat, make sure it's authentic. You can call Elanco product support at 800-422-9874 to verify a collar is authentic.
Flea collars used to be a standard recommendation for flea control, but they now take a back seat to topical and oral preventives, which are considered the best flea and tick treatments for cats. One notable exception is the Seresto Flea and Tick Collar. It uses patented sustained-release technology to provide eight months of continuous protection against adult fleas, flea larvae, and ticks.
The Seresto Flea and Tick Collar contains imidacloprid and flumethrin, which are released in low concentrations over your cat's skin and coat to kill fleas on contact. The water-resistant collar kills 100% of fleas within 24 hours. It is nongreasy, odor-free, lightweight, and adjustable to fit cats of all sizes. Your cat can wear it alongside their existing collar. Additionally, the collar features a two-step safety system, allowing your cat to break free if it becomes caught on something.
While topical and oral treatments are the most convenient and effective options for flea control, there are times when the Seresto collar might be a suitable alternative. Dr. Colleen Sawyer, a veterinarian at Rolesville Veterinary Hospital, says the collar may be a good choice for people who tend to forget to give monthly treatments. She also likes it for cats who can't tolerate topical flea products and resist taking pills. Bourgeois says the Seresto collar might also be a good option for outdoor cats who roam often and may not be seen consistently by their owners
Best for young kittens
Capstar Flea Control Tablets are safe for kittens as young as 4 weeks old and start killing fleas within 30 minutes.
What we like
What we don't like
Capstar is the only flea control medicine that's safe for kittens as young as 4 weeks old and weighing at least 2 pounds — and it's available without a prescription. Other oral and topical flea control products can only be used to treat kittens who are at least 8 weeks old, and sometimes even older.
When dealing with a severe flea infestation, especially in young kittens, it's important to eliminate fleas as fast as possible. Capstar's active ingredient, nitenpyram, starts working within 30 minutes and can kill more than 90% of adult fleas in as little as six hours.
While Capstar works quickly, it only protects against fleas for 24 hours. However, it is safe to give daily if necessary. Since giving your cat a pill every day can be inconvenient, it's important to follow up with a long-term flea control product once your cat is old enough.
Our picks for cat flea and tick treatments compared
| Revolution Plus Topical Solution for Cats | Frontline Plus for Cats | Comfortis Chewable Tablets for Dogs and Cats | Seresto Flea and Tick Collar for Cats | Capstar Tablets for Cats | |
| Best for | Broad-spectrum parasite protection, including heartworm prevention | Over-the-counter flea and tick protection | Fast-acting treatment of adult flea infestations | Long-lasting flea and tick protection | Immediate treatment of adult fleas in cats as young as 4 weeks old and weighing at least 2 lbs. |
| Skip this if | You need an OTC medication; your cat is breeding, pregnant, or nursing | You also need heartworm protection in one medication; your cat is under 8 weeks old | You need to eliminate anything other than adult fleas; your cat is under 14 weeks old, weighs less than 4.1 pounds, or is breeding, pregnant, or nursing | You also need heartworm protection in one medication; your cat is under 10 weeks old | You need to eliminate anything other than adult fleas or you need long-lasting protection against fleas and other parasites |
| Price range | $23-$36 per dose | $11-$14 per dose | $21 per dose | $60 for 8 months of protection | $6-$7 per dose |
| Type | Topical | Topical | Tablet | Collar | Tablet |
| Prescription | Yes | No | Yes | No | No |
What to look for in flea and tick treatments and preventives for cats
When choosing the best flea and tick treatments and preventives for cats, you can use the same criteria I relied on to make my recommendations for this guide. However, be sure to consult your veterinarian before starting any treatment.
Safety and efficacy: Any flea and tick medicine for cats should be approved by either the Food and Drug Administration (FDA) or the Environmental Protection Agency (EPA). To verify FDA approval, you can search the Animal Drugs @ FDA database. For products that regulated by the FDA, you'll want to check the EPA's Pesticide Product and Label System, which oversees certain flea and tick treatments that contain pesticides.
Number of parasites treated: Flea preventives that protect against multiple parasites are especially valuable. In general, the more parasites a product covers, the higher I rated it. The exceptions in my recommendations are Capstar, which is the only treatment safe for kittens under 8 weeks old, and Frontline Plus, which targets fleas, ticks, and lice and can be purchased without a prescription.
Ease of use: Look for a product that is easy to use. When comparing similar options, the easier one to use is often your best bet. For example, I rated products lower if they require gloves during application or if children and other pets need to be kept away from the treated cat for a period of time.
Minimum age and weight: Flea medications are only safe for cats that meet certain age and weight requirements. Because of this, treatment options for very young kittens are limited.
Prescription vs. OTC: Some flea control products are available over the counter, while others require a prescription from your veterinarian. Prescription flea control products are usually more expensive than OTC options because they protect against more parasites — most importantly, deadly heartworms.
There is no treatment for cats with adult heartworms, and once infected, they will eventually die from the infection. That's why veterinarians recommend year-round heartworm prevention for all cats, regardless of whether they live indoors or outdoors. They also advise year-round protection against intestinal parasites. For these reasons, prescription flea control products that prevent heartworms and other parasites are the best choice. The more parasites a single treatment can prevent, the better off your cat will be.
Prescription medications can be purchased directly from your veterinarian or through online retailers such as Chewy, Petco, and Petsmart.
Types of flea and tick medications: There are several types of flea and tick medications for cats, including topical treatments, oral medications, collars, shampoos, and sprays. These vary in cost, convenience, ease of use, and effectiveness. Your veterinarian can help you decide which option is best for your cat.
- Topical preventives, often called "spot-on," kill fleas and prevent flea infestations.
- Oral flea control products, or "flea pills," are given to a cat by mouth to kill fleas and prevent fleas.
- Flea collars deliver medication to a cat's skin and coat.
- Flea sprays are applied to the skin and coat. My experts do not recommend them because topical and oral products are more effective.
- Flea shampoos kill fleas that are present on your cat, but topical and oral flea control products are much more effective. Some flea shampoos are even harmful to cats, as they often contain pyrethrins. "Nowadays, flea shampoos are rarely, if ever, needed because the topical and oral flea products are much more effective and safer," Sawyer says. "For flea-infested animals, we typically give a fast-acting oral product such as nitenpyram [Capstar] and follow with a bath in Dawn dish detergent or another mild cat shampoo. You can use a flea comb to assist in removing dead fleas and flea dirt [flea feces]."
Natural vs. synthetic: The veterinarians I consulted do not recommend natural flea control products, as they are far less effective than topical and oral flea control products. "They are just not proven to be really effective," Bourgeois says. "My biggest concern with natural products is, even if they're safe, if they're not effective, that's not helping our pets." If you're considering using natural flea remedies that contain essential oils, be cautious because some essential oils are toxic to cats.
How we selected the best flea and tick treatments for cats
To make my recommendations for this guide, I evaluated each product according to my criteria outlined above and consulted the Quick Product Reference Guide from the independent, nonprofit Companion Animal Parasite Council. This resource includes all FDA- and EPA-approved parasite control products for small animals. It provides details on each product's active ingredients, usage directions, and parasites it controls.
Meet the expert behind this guide
Jackie Brown, pet expert: I've spent my career dedicated to understanding pets' health and well-being, from eight years working as a veterinary assistant in an animal hospital to more than two decades writing and editing about animal health, nutrition, and behavior. For this guide on the best flea and tick treatments for cats, I drew from on hands-on experience treating cats for fleas and other parasites, consulted veterinarians for clinical insights, and evaluated products using the Companion Animal Parasite Council's Quick Product Reference Guide.
Cat flea and tick treatment FAQs
Which flea treatment do vets recommend for cats?
Veterinarians say prescription flea preventives for cats are the gold standard for killing fleas and preventing further flea infestations. "Products like Revolution Plus or NexGard Combo provide broad protection against fleas, ticks, ear mites, and even heartworm disease," says Dr. Colleen Lambo, a relief veterinarian with Roo.
It's essential to use only flea products specifically labeled for cats because flea treatments for dogs can be fatal to cats. Always double-check labels, especially when using over-the-counter flea treatments, and follow the instructions exactly. If you're also treating family dogs for fleas, keep them separated until the product has fully dried.
Some pet parents prefer "natural" flea control products to avoid chemicals, but natural doesn't automatically mean safe. For instance, cats are highly sensitive to essential oils, which are common in natural pest control products. "Certain 'natural' or essential oil products can cause serious toxicity, seizures, or liver failure," Lambo says. "When veterinary-approved options are available, they are both safer and far more effective."
What is the most effective cat flea treatment?
Veterinarians say topical and oral flea treatments are the most effective and easiest to use. The right flea control product for your cat depends on several factors, including their age, weight, and any preexisting health conditions. Topical products are excellent for both killing fleas and preventing flea infestations. They are typically applied to the skin in a single spot on the back of the neck once a month, and then spread across the entire body as they dry, leaving no residue. Oral flea control medicines are given by mouth to kill fleas. Some pills kill fleas for up to a month, while others need to be given more frequently to continue killing fleas, as often as daily.
Is Frontline or Advantage a better flea treatment for cats?
Frontline and Advantage both make two different topical flea treatments. Frontline Plus, Frontline Gold, and Advantage II are available over the counter, while Advantage Multi requires a prescription from your veterinarian. Frontline Plus is my recommendation for an OTC treatment: It kills fleas at all life stages and also protects against chewing lice and ticks. Frontline Gold protects against the same parasites as Plus, but it works faster and is significantly more expensive. Advantage II lost out to Frontline Plus because it does not kill ticks and may require more frequent use in severe infestations. Advantage Multi does not kill ticks, but it prevents heartworms and treats and controls roundworms, hookworms, and ear mites. However, Revolution Plus is my top pick for treating worms, fleas, and ticks due to its easier application.
How can you tell if your cat has fleas?
While outdoor cats are at higher risk of picking up fleas, indoor cats can still get fleas from trips to the veterinarian, a boarding facility, or when the family dog has them. Fleas can even be carried inside on your clothes or shoes. Signs of fleas in cats include scratching, irritated skin, and the presence of dark red or black specks on your cat's skin or fur, bedding, or furniture. These specks, about the size of grains of ground black pepper, are called "flea dirt" and are flea feces (or digested blood). To check your cat for fleas or flea dirt, run a flea comb through their coat or part their hair with your fingers to examine the skin. If you find live or dead fleas or flea dirt, your cat has a flea infestation.
How do you get rid of fleas for cats without going to the vet?
You can get rid of fleas without going to the vet by using a veterinarian-approved flea control product on your cat and also treating your home for fleas to stop the flea life cycle. Choose a safe, effective flea control product that both kills the adult fleas and prevents new eggs from hatching, and use it consistently year-round.
"Even if you can't get to a vet in person, most clinics can recommend or prescribe the right treatment remotely," Lambo says. "It's always safer to go with a vet-approved product than to gamble on unregulated remedies."
She pointed out that fleas spend most of their time in the environment rather than on your cat. This is why treating your home is just as important as treating your pet. To get on top of fleas in your home, vacuum your carpets and upholstered furniture daily initially to remove as many fleas and flea eggs as you can. Wash all bedding in the house (your cat's and yours) in hot water and dry it on the highest heat setting in the dryer.
"Fleas have a long life cycle, so it can take weeks or even months of consistent effort to fully clear an infestation," Lambo says. If, despite your best efforts, you're still seeing fleas in your home or on your pet, consult with both your vet and a professional extermination service.
What do you do if you find a tick on your cat?
If you find a tick on your cat, remove it as quickly as you can. You can do this at home if your cat allows it. Use fine-tipped tweezers, grasp the tick close to the skin, and pull it straight out, says Dr. Holly Dutton, medical director and an emergency veterinarian at VEG ER for Pets in Tampa, Florida. Don't attempt any home remedies, such as burning the tick or trying to suffocate it with rubbing alcohol — these can cause the tick to release more saliva and pathogens into your cat.
"After removal, monitor your cat for signs of illness such as fever, lethargy, or decreased appetite, and contact your veterinarian if you're unsure how long the tick was attached or if your cat seems unwell," Dutton says. If you're worried the head might still be in your cat's skin, schedule a vet appointment so they can safely remove it. You should also ask your vet for a recommendation for safe and effective tick prevention to prevent new tick bites.
Why are some flea products dangerous to cats?
Never use a product on a cat if it is labeled only for dogs. Some ingredients that are well-tolerated by dogs can be toxic to cats. "Anything with a permethrin, also known as pyrethrin, should never be used on a cat," Sawyer says. "[Cats] are very sensitive to pyrethrins and can have significant neurologic side effects, even death. Never use a product labeled for a dog on a cat as it may have pyrethrins in it even if not exclusively mentioned on the label."
You can purchase logo and accolade licensing to this story here.
Disclosure: Written and researched by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we may get a small share of the revenue from the sale from our partners. We may receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising team. We welcome your feedback. Email us at reviews@businessinsider.com.
