What are the best cat heartworm preventatives for your feline companion’s health? We provide a carefully researched list of veterinarian-trusted, easy-to-apply options like monthly drops and long-lasting treatments, ensuring safe and effective protection tailored to your cat’s needs.
Protecting your cat from heartworm disease is crucial for their health and happiness. With so many options available, finding the best cat heartworm preventative can feel overwhelming. That’s why we’ve done the research for you, comparing top products to help you make an informed choice.
From monthly drops to long-lasting treatments, we’ve got you covered. Discover veterinarian-trusted formulas that are easy to apply and safe for your feline friend.
List of Top 10 Cat Heartworm Preventatives
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Revolution Plus Topical Solution for Cats, 2.8-5.5 lbs, 1-Month Supply |
This product is perfect for cat owners who want full parasite protection for their feline friends. Revolution Plus gives 7-in-One Protection against fleas, ticks, ear mites, worms, and heartworm disease. It works for indoor and outdoor cats and only needs one easy application each month. Keep your cat safe and healthy with this vet-loved solution. |
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Revolution Plus Topical Solution for Cats, 2.8-5.5 lbs, 3-Month Supply |
Revolution Plus is perfect for cat owners who want simple, all-in-one protection for their pets. It’s ideal for cats of all lifestyles, whether they stay indoors, outdoors, or both. |
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NexGard® Combo (esafoxolaner, eprinomectin, and praziquantel Topical Solution) Flea and Tick Protection Plus Heartworm Disease Preventive for Cats, 5.6-16.5 lbs. (Yellow Box) 1 Dose (1 Month Supply) |
NexGard® Combo is perfect for cat owners who want simple, all-in-one protection for their pets. It’s ideal for cats weighing 5.6-16.5 lbs needing monthly flea, tick, and heartworm prevention plus tapeworm treatment. |
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BRAVECTO PLUS Topical Solution for Cats, Flea, Tick & Heartworm, 2 Months Supply, 13.8-27.5 lbs., Purple Box |
This product is perfect for cat owners who want fast, safe, and long-lasting protection against fleas, ticks, and heartworms. It’s ideal for cats weighing 13.8-27.5 lbs and works great for indoor cats too. |
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Advantage Multi for Cats 5-in-1 Heartworm Prevention, 5.1-9 lbs., 6ct |
Advantage Multi for Cats is perfect for cat owners who want simple, all-in-one protection. It’s easy to use and keeps your cat safe from fleas, ear mites, worms, and heartworm. |
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Advantage Multi for Cats 5-in-1 Heartworm Prevention | Kills Fleas & More | Cats 5.1-9 lbs. | 1 Count |
Busy owners need a simple way to keep cats safe. Stop fleas, heartworms, and worms with a quick drop they will love. |
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NexGard® Combo (esafoxolaner, eprinomectin, and praziquantel Topical Solution) Flea and Tick Protection Plus Heartworm Disease Preventive for Cats, 1.8-5.5 lbs. (Purple Box) 1 Dose (1 Month Supply) |
NexGard® Combo is perfect for cat owners who want simple, all-in-one protection. It keeps cats safe from fleas, ticks, and worms with just one monthly dose. |
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Advantage Multi for Cats 5-in-1 Heartworm Prevention | Kills Fleas & More | Cats 2-5 lbs. | 3-Month Supply |
This cat flea treatment is perfect for busy pet parents who want easy care for their small cats. It delivers 5-in-1 protection against fleas, ear mites, intestinal worms, and heartworm disease. Each topical treatment lasts 30 days and kills pests through contact—no biting needed. |
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BRAVECTO PLUS Topical Solution for Cats, Flea, Tick & Heartworm, 2 Months Supply, 6.2-13.8 lbs., Blue Box |
This product is perfect for cat owners who want fast, safe, and easy protection against fleas, ticks, and heartworms. It’s great for indoor and outdoor cats weighing 6.2-13.8 lbs. and offers up to 2 months of coverage with just one dose. |
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Selarid (selamectin) | Puppy/Kitten | 0-5 lbs | 3-Month Supply | Flea, Heartworm, Ear Mite Protection |
Selarid is perfect for small puppies and kittens that weigh up to five pounds. It offers flea and heartworm protection for pets who need a simple monthly solution to stay healthy. |
Detailed Reviews
I have compiled the top experts’ advice to find the best cat options. You will learn which drops offer simple monthly and two-month protection. Read on to discover why these trusted brands are the right choice for your pet.
1. Revolution Plus Topical Solution for Cats, 2.8-5.5 lbs, 1-Month Supply
Revolution Plus keeps your cat safe every month. It protects against fleas, ticks, and more. One small drop does all the work.
Vets trust this 7-in-one protection for cats. It works on indoor and outdoor cats alike.
Apply once a month with ease. No gloves needed—just quick care for your pet.
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Perfect For:
This product is perfect for cat owners who want full parasite protection for their feline friends. Revolution Plus gives 7-in-One Protection against fleas, ticks, ear mites, worms, and heartworm disease. It works for indoor and outdoor cats and only needs one easy application each month. Keep your cat safe and healthy with this vet-loved solution.
Ready to Purchase?
2. Revolution Plus Topical Solution for Cats, 2.8-5.5 lbs, 3-Month Supply
Revolution Plus is a monthly topical solution for cats. It protects your pet from fleas, ticks, ear mites, and more. One application keeps parasites away for a whole month.
This 7-in-one protection covers fleas, ticks, ear mites, roundworms, hookworms, and heartworm disease. It also prevents tapeworms by killing fleas. Approved for cats and kittens eight weeks and older.
It works for indoor and outdoor cats. Apply it easily on the back of your cat’s neck. Vets trust this proven solution for over 25 years.
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Perfect For:
Revolution Plus is perfect for cat owners who want simple, all-in-one protection for their pets. It’s ideal for cats of all lifestyles, whether they stay indoors, outdoors, or both.
Ready to Purchase?
3. NexGard® Combo (esafoxolaner, eprinomectin, and praziquantel Topical Solution) Flea and Tick Protection Plus Heartworm Disease Preventive for Cats, 5.6-16.5 lbs. (Yellow Box) 1 Dose (1 Month Supply)
NexGard® Combo is a monthly topical solution for cats weighing 5.6-16.5 lbs. It offers year-round protection against fleas, ticks, heartworm disease, and intestinal parasites.
This easy-to-use treatment is applied once a month. It kills fleas and prevents heartworm disease. It also treats tapeworms, hookworms, and roundworms.
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Perfect For:
NexGard® Combo is perfect for cat owners who want simple, all-in-one protection for their pets. It’s ideal for cats weighing 5.6-16.5 lbs needing monthly flea, tick, and heartworm prevention plus tapeworm treatment.
Ready to Purchase?
4. BRAVECTO PLUS Topical Solution for Cats, Flea, Tick & Heartworm, 2 Months Supply, 13.8-27.5 lbs., Purple Box
BRAVECTO Plus is a fast-acting and safe treatment for cats. It protects against fleas, ticks, and heartworm. Just one dose gives up to 2 months of protection.
The Twist’n’Use applicator is easy and non-spill. Even indoor cats need protection from fleas and ticks.
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Perfect For:
This product is perfect for cat owners who want fast, safe, and long-lasting protection against fleas, ticks, and heartworms. It’s ideal for cats weighing 13.8-27.5 lbs and works great for indoor cats too.
Ready to Purchase?
5. Advantage Multi for Cats 5-in-1 Heartworm Prevention, 5.1-9 lbs., 6ct
Advantage Multi for Cats is a 5-in-1 solution that keeps your cat safe. It prevents heartworm disease and controls fleas, ear mites, and intestinal worms.
This veterinarian-trusted formula works fast. It kills fleas on contact, treats ear mites, and lasts 30 days per dose.
The topical treatment is easy to apply. No pills, no fuss—just quick protection for your cat.
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Perfect For:
Advantage Multi for Cats is perfect for cat owners who want simple, all-in-one protection. It’s easy to use and keeps your cat safe from fleas, ear mites, worms, and heartworm.
Ready to Purchase?
6. Advantage Multi for Cats 5-in-1 Heartworm Prevention | Kills Fleas & More | Cats 5.1-9 lbs. | 1 Count
Advantage Multi for Cats is a 5-in-1 solution that keeps your cat safe. It protects against fleas, ear mites, intestinal worms, and heartworm disease.
This veterinarian-trusted formula works for 30 days with just one dose. It kills fleas on contact, so pests don’t need to bite your cat to die.
Easy to apply, no pills needed. Treats ear mites too. Safe for cats 5.1-9 lbs.
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Perfect For:
Busy owners need a simple way to keep cats safe. Stop fleas, heartworms, and worms with a quick drop they will love.
Ready to Purchase?
7. NexGard® Combo (esafoxolaner, eprinomectin, and praziquantel Topical Solution) Flea and Tick Protection Plus Heartworm Disease Preventive for Cats, 1.8-5.5 lbs. (Purple Box) 1 Dose (1 Month Supply)
NexGard® Combo keeps your cat safe from fleas, ticks, and worms. It’s a monthly treatment that’s easy to apply. One dose protects your cat for a full month.
This is the first and only product that fights tapeworms in cats. It also stops fleas from laying eggs and protects against ticks.
It prevents heartworm disease and controls hookworms, roundworms, and tapeworms. Simple, one-and-done dosing keeps your cat healthy all year.
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Perfect For:
NexGard® Combo is perfect for cat owners who want simple, all-in-one protection. It keeps cats safe from fleas, ticks, and worms with just one monthly dose.
Ready to Purchase?
8. Advantage Multi for Cats 5-in-1 Heartworm Prevention | Kills Fleas & More | Cats 2-5 lbs. | 3-Month Supply
Advantage Multi for Cats offers 5-in-1 protection for your pet. It guards against fleas, ear mites, intestinal worms, and heartworm disease. Each dose keeps your cat safe for 30 days.
This veterinarian-trusted formula kills fleas on contact. Pests don’t need to bite your cat to die. It also treats ear mite infestations effectively.
The easy-to-apply topical treatment is simple to use. No need for hard-to-swallow pills. Just apply once a month for full protection.
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Perfect For:
This cat flea treatment is perfect for busy pet parents who want easy care for their small cats. It delivers 5-in-1 protection against fleas, ear mites, intestinal worms, and heartworm disease. Each topical treatment lasts 30 days and kills pests through contact—no biting needed.
Ready to Purchase?
9. BRAVECTO PLUS Topical Solution for Cats, Flea, Tick & Heartworm, 2 Months Supply, 6.2-13.8 lbs., Blue Box
BRAVECTO Plus is a topical solution for cats that protects against fleas, ticks, and heartworm. It’s fast-acting, safe, and easy to use.
One dose gives up to 2 months of protection. It lasts nearly 2X longer than other monthly treatments.
The Twist’n’Use applicator is non-spill and simple. Even indoor cats need protection from fleas and ticks!
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Perfect For:
This product is perfect for cat owners who want fast, safe, and easy protection against fleas, ticks, and heartworms. It’s great for indoor and outdoor cats weighing 6.2-13.8 lbs. and offers up to 2 months of coverage with just one dose.
Ready to Purchase?
10. Selarid (selamectin) | Puppy/Kitten | 0-5 lbs | 3-Month Supply | Flea, Heartworm, Ear Mite Protection
Selarid is a monthly treatment for puppies and kittens under 5 lbs. It protects against fleas, heartworms, and ear mites, keeping your pet safe and healthy.
Easy to apply, just put it on the skin at the base of the neck. Works fast and lasts all month.
Cost-effective and reliable, Selarid uses the same active ingredient as top brands. Save money while giving your pet the best care.
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Perfect For:
Selarid is perfect for small puppies and kittens that weigh up to five pounds. It offers flea and heartworm protection for pets who need a simple monthly solution to stay healthy.
Ready to Purchase?
Buying Guide
Finding the right heartworm preventative for your cat is simple. Compare top products and pick what works best. Keep your cat safe year-round with ease.
Real cat owners share their stories. Maria switched to Revolution Plus after her indoor cat got fleas. Now both her pets stay protected monthly.
- Protection Level: Choose a preventative that fights heartworms, fleas, and ticks. Some also stop ear mites and worms. More coverage means fewer products.
- Application Type: Topical drops go on your cat’s neck. They’re easy and no-pill. Just part the fur and apply monthly.
- Duration of Action: Most need monthly use. Some last two months. Longer protection means fewer applications.
- Age & Weight Limits: Check if it’s safe for kittens. Ensure the weight range fits your cat. Too little or too much can be unsafe.
- Veterinarian Trust: Trusted by vets? That means it’s proven and effective. Look for vet-recommended brands.
- Indoor vs Outdoor Use: Outdoor cats face more risks. But indoor cats can still catch fleas inside. Pick based on your cat’s lifestyle.
- Side Effects: Mild skin irritation is rare. Watch for itching or swelling. Choose gentle formulas for sensitive skin.
- Price & Value: Cheaper doesn’t mean better. Buy a 3-month supply to save. Compare cost per dose for long-term value.
- Ease of Use: Apply on the back of the neck. No gloves needed for most. Quick and clean means happy cats.
- Veterinary Availability: Buy from vets or licensed stores. Avoid unknown sellers. Authentic products keep your cat safe.