Looking for the best monthly flea preventives to protect your pet?
Discover top-rated options like NexGard Plus and Hartz UltraGuard Pro, offering fast, stress-free solutions tailored to your pet’s needs!
Monthly flea prevention is a must-have for pets and their owners. With so many options, finding the right protection can feel overwhelming. But the best picks make flea and tick control simple, effective, and stress-free.
Top choices like NexGard Plus and Hartz UltraGuard Pro offer fast-acting, waterproof defense. They kill pests on contact and break life cycles to stop infestations. Beef-flavored chews and easy-to-apply drops make dosing a breeze.
Your pet deserves safe, lasting care tailored to their size and lifestyle. Whether you choose chewables or topical treatments, these picks deliver vet-recommended results. Dive in to find the perfect match for your furry friend’s needs.
List of Top 9 Monthly Flea Preventives
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
NexGard Plus (afoxolaner, moxidectin, and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables, 8.1-17 lbs. (Green) 1 Chew (1 Month Supply) |
This product is perfect for dog owners who want simple, all-in-one protection for their pets. It’s ideal for dogs weighing 8.1-17 lbs that need flea, tick, heartworm, and worm control in one easy chew. |
|
![]() |
NexGard Plus (afoxolaner, moxidectin, and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables, 4-8 lbs. (Orange) 1 Chew (1 Month Supply) |
This product is perfect for dog owners who want simple, all-in-one protection for their pets. It’s ideal for small dogs (4-8 lbs.) needing flea, tick, heartworm, and worm control in one monthly chew. |
|
![]() |
NEXTSTAR Flea and Tick Prevention for Dogs, Repellent & Control, Fast Acting Waterproof Topical Drops, Flea and Tick Prevention for Large Dogs, 1 Monthly Dose |
NextStar Flea and Tick Prevention is perfect for dog owners who want fast, easy, and long-lasting protection for their pets. It’s ideal for large dogs needing monthly flea and tick control without a vet visit. |
|
![]() |
Hartz UltraGuard Dual Action Flea & Tick Topical Dog Treatment and Flea and Tick Prevention, 6 Months, 5-14 Pound Dogs 6-count(Pack of 1) |
This product is perfect for dog owners who want easy, effective flea and tick protection. It’s ideal for small dogs (5-14 pounds) needing 6 months of defense. |
|
![]() |
Hartz UltraGuard Topical Flea & Tick Prevention for Cats and Kittens – 3 Monthly Treatments |
This product is perfect for cat owners who want to protect their pets from fleas, ticks, and mosquitoes. It’s easy to use and safe for cats and kittens 12 weeks and older, weighing 5 pounds or more. |
|
![]() |
Only Natural Pet Flea and Tick Prevention for Cats – EasyDefense Remedy for Your Pets – Natural Care Control Squeeze-On Drops – Tick and Flea Protection – Three Months Supply (Single) |
This product is perfect for cat owners who want safe, natural flea and tick protection. It’s easy to use and gentle on pets, making it ideal for cats over 4 months old. |
|
![]() |
Hartz UltraGuard Pro Topical Flea & Tick Prevention for Cats and Kittens – 3 Monthly Treatments |
This flea and tick prevention is perfect for cat owners who want a simple, effective solution. It’s easy to use and safe for cats and kittens 12 weeks and older. |
|
![]() |
Hartz UltraGuard Pro Topical Flea & Tick Prevention for Cats & Kittens, Over 5 lbs 6 Monthly Treatments |
This product is perfect for cat owners who want fast, easy, and long-lasting flea and tick protection. It’s great for cats over 5 lbs and keeps them safe from pests for up to 6 months. |
|
![]() |
Hartz UltraGuard Pro Topical Flea & Tick Prevention for Dogs and Puppies – 15-30 lbs, 3 Monthly Treatments |
This product is perfect for dog owners who want fast, easy, and long-lasting protection against fleas, ticks, and mosquitoes. It’s great for dogs and puppies weighing 15-30 lbs, offering 3 months of peace of mind. |
Detailed Reviews
Discover the top 9 monthly flea preventives for your pets, carefully selected based on expert reviews and customer feedback. Each product offers reliable protection against fleas, ticks, and more, ensuring your pet stays happy and healthy. Whether you prefer chewables, topical drops, or natural solutions, this guide has you covered. Find the perfect fit for your pet’s needs and enjoy peace of mind all year round.
1. NexGard Plus (afoxolaner, moxidectin, and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables, 8.1-17 lbs. (Green) 1 Chew (1 Month Supply)

NexGard Plus is a monthly chewable for dogs weighing 8.1-17 lbs. It protects against fleas, ticks, and heartworms.
It kills fleas and ticks, prevents heartworm disease, and treats hookworms and roundworms. Simple, one-chew dosing keeps your dog safe.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for dog owners who want simple, all-in-one protection for their pets. It’s ideal for dogs weighing 8.1-17 lbs that need flea, tick, heartworm, and worm control in one easy chew.
Ready to Purchase?
2. NexGard Plus (afoxolaner, moxidectin, and pyrantel) Flea and Tick Protection & Heartworm Preventive for Dogs Soft Beef Flavored Chewables, 4-8 lbs. (Orange) 1 Chew (1 Month Supply)

NexGard Plus is a monthly chewable for dogs weighing 4-8 lbs. It protects against fleas, ticks, and heartworms.
It kills adult fleas and five tick species. It also prevents heartworm disease. One chew keeps your dog safe.
It treats hookworms and roundworms. It’s beef-flavored and easy to give. Simple, one-and-done protection.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for dog owners who want simple, all-in-one protection for their pets. It’s ideal for small dogs (4-8 lbs.) needing flea, tick, heartworm, and worm control in one monthly chew.
Ready to Purchase?
3. NEXTSTAR Flea and Tick Prevention for Dogs, Repellent & Control, Fast Acting Waterproof Topical Drops, Flea and Tick Prevention for Large Dogs, 1 Monthly Dose

NextStar Flea and Tick Prevention keeps your dog safe for 30 days. It’s a fast-acting, waterproof solution. Just one dose protects your pet.
This veterinarian-recommended formula is easy to use. No prescription is needed. It starts working in 15 minutes.
NextStar offers 7-way pest protection. It breaks the flea lifecycle. We’re here to help if you need us.
| Pros | Cons |
|---|---|
|
|
Perfect For:
NextStar Flea and Tick Prevention is perfect for dog owners who want fast, easy, and long-lasting protection for their pets. It’s ideal for large dogs needing monthly flea and tick control without a vet visit.
Ready to Purchase?
4. Hartz UltraGuard Dual Action Flea & Tick Topical Dog Treatment and Flea and Tick Prevention, 6 Months, 5-14 Pound Dogs 6-count(Pack of 1)

Hartz UltraGuard Dual Action Flea & Tick Topical Treatment is designed for dogs weighing 5-14 pounds. It kills fleas, ticks, and their eggs on contact. This product provides full-body protection for your dog.
It prevents new infestations by breaking the flea life cycle. The treatment lasts for 30 days.
Each pack contains 6 monthly doses, one for each month. Apply to the base of your dog’s back for easy, fast protection.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for dog owners who want easy, effective flea and tick protection. It’s ideal for small dogs (5-14 pounds) needing 6 months of defense.
Ready to Purchase?
5. Hartz UltraGuard Topical Flea & Tick Prevention for Cats and Kittens – 3 Monthly Treatments

Hartz UltraGuard keeps cats and kittens safe from fleas and ticks. It comes in easy-to-use tubes for monthly treatments. Each tube is simple to apply.
This topical formula kills fleas and deer ticks. It also repels mosquitoes for 18 days.
Protect your pet with three monthly doses. Use on cats 12 weeks and older weighing 5 pounds or more. Keep your cat happy and healthy.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for cat owners who want to protect their pets from fleas, ticks, and mosquitoes. It’s easy to use and safe for cats and kittens 12 weeks and older, weighing 5 pounds or more.
Ready to Purchase?
6. Only Natural Pet Flea and Tick Prevention for Cats – EasyDefense Remedy for Your Pets – Natural Care Control Squeeze-On Drops – Tick and Flea Protection – Three Months Supply (Single)

Protect your cat from fleas, ticks, and mosquitoes with Only Natural Pet’s EasyDefense. This plant-based formula offers three months of protection. Each tube provides one month of defense.
The natural ingredients include geraniol, peppermint oil, and thyme oil. These soothe irritated skin and provide a pleasing aroma. Your cat will love this gentle solution.
Easy to apply, just snap, squeeze, and go. Safe for cats over 4 months. Reapply after bathing.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for cat owners who want safe, natural flea and tick protection. It’s easy to use and gentle on pets, making it ideal for cats over 4 months old.
Ready to Purchase?
7. Hartz UltraGuard Pro Topical Flea & Tick Prevention for Cats and Kittens – 3 Monthly Treatments

Hartz UltraGuard Pro keeps your cat safe from fleas and ticks. It’s easy to use with a special applicator. Each pack includes 3 monthly treatments.
The Pro-cision Flo applicator glides through fur for gentle on-skin use. It works for long and short-haired cats.
It kills fleas, eggs, larvae, and deer ticks. Plus, it has a safety snap for peace of mind. Safe for cats 12 weeks and older.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This flea and tick prevention is perfect for cat owners who want a simple, effective solution. It’s easy to use and safe for cats and kittens 12 weeks and older.
Ready to Purchase?
8. Hartz UltraGuard Pro Topical Flea & Tick Prevention for Cats & Kittens, Over 5 lbs 6 Monthly Treatments

Hartz UltraGuard Pro keeps cats safe from fleas, ticks, and mosquitoes. It kills pests on contact and stops new ones from coming back. This easy-to-use treatment protects your cat for six full months.
The fast-acting formula spreads quickly using your cat’s natural oils. The angled applicator makes it simple to apply, even on long-haired cats.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for cat owners who want fast, easy, and long-lasting flea and tick protection. It’s great for cats over 5 lbs and keeps them safe from pests for up to 6 months.
Ready to Purchase?
9. Hartz UltraGuard Pro Topical Flea & Tick Prevention for Dogs and Puppies – 15-30 lbs, 3 Monthly Treatments

Hartz UltraGuard Pro keeps your dog safe from fleas and ticks. It also repels mosquitoes before they bite. This topical treatment is easy to apply and works fast.
The formula spreads across your dog’s skin using their natural oils. It provides full-body protection from head to tail. The Pro-Glide applicator makes it simple to use on any dog.
Each package includes 3 monthly treatments. This ensures non-stop protection for up to 3 months. Keep your pet safe and prevent re-infestations easily.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This product is perfect for dog owners who want fast, easy, and long-lasting protection against fleas, ticks, and mosquitoes. It’s great for dogs and puppies weighing 15-30 lbs, offering 3 months of peace of mind.
Ready to Purchase?
Buying Guide
Monthly flea prevention keeps pets happy and healthy. It’s easy to use and works fast.
Factors to Consider When Buying Monthly Flea Preventives:
– Pet Size and Age: Choose products matched to your pet’s weight and life stage. Puppies, kittens, and older pets may need special formulas.
– Type of Treatment: Decide between chewables, topical drops, or natural options. Pick what’s easiest for you and your pet.
– Pest Protection: Look for products that kill fleas, ticks, and other pests. Some also prevent heartworms or repel mosquitoes.
– Duration of Protection: Check if it lasts 30 days or longer. Consistent use stops infestations.
– Ease of Application: Choose beef-flavored chews or easy-to-apply drops. Make it stress-free for you and your pet.
– Safety and Ingredients: Ensure it’s safe for your pet’s breed and size. Natural options are great for sensitive pets.
– Waterproof Formula: Pick waterproof treatments if your pet swims or gets wet often.
– Vet Recommendation: Always check with your vet for the best option for your pet’s needs.