Best Flea Medicines of 2024

K9 Advantix II Extra Large Dog 30-day treatment & prevention protects dogs over 55 lbs. from fleas, ticks, mosquitoes, biting flies and lice

Kills fleas within 12 hours of application

Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die

Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours

No prescription needed

Keep your dog protected from fleas & ticks all month long with FRONTLINE Plus for Dogs a fast-acting, waterproof flea & tick topical that's proven to kill fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease.

Break the flea life cycle with FRONTLINE Plus. Specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control.

Trusted by pet owners for over 20 years, FRONTLINE Plus for Dogs can be used on puppies as young as eight weeks old, weighing 5 pounds or more, and is easy to apply with one monthly dose providing protection from fleas & ticks for a full 30 days.

FRONTLINE Plus also comes in a formula designed for cats and kittens eight weeks of age and older, 1.5lbs. and over so you can protect the dogs or cats in your house from fleas and ticks with FRONTLINE Brand Products.

Treat all dogs or cats in your household monthly to effectively control fleas and ticks and prevent the establishment of new flea infestations.

Subscribe & save today to make it easier to keep your dogs or cats protected year-round and make sure you never run out of FRONTLINE Plus.

Keep your dog protected from fleas & ticks all month long with FRONTLINE Plus for Dogs a fast-acting, waterproof flea & tick topical that's proven to kill fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease.

Break the flea life cycle with FRONTLINE Plus. Specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control.

Trusted by pet owners for over 20 years, FRONTLINE Plus for Dogs can be used on puppies as young as eight weeks old, weighing 5 pounds or more, and is easy to apply with one monthly dose providing protection from fleas & ticks for a full 30 days.

FRONTLINE Plus also comes in a formula designed for cats and kittens eight weeks of age and older, 1.5lbs. and over so you can protect the dogs or cats in your house from fleas and ticks with FRONTLINE Brand Products.

Treat all dogs or cats in your household monthly to effectively control fleas and ticks and prevent the establishment of new flea infestations.

Subscribe & save today to make it easier to keep your dogs or cats protected year-round and make sure you never run out of FRONTLINE Plus.

Keep your dog protected from fleas & ticks all month long with FRONTLINE, the #1 name in flea and tick protection*. FRONTLINE Plus for Dogs a fast-acting, waterproof flea & tick topical that's proven to kill fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease. *Data on file at Boehringer Ingelheim.

Break the flea life cycle with FRONTLINE Plus. Specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control.

Trusted by pet owners for over 20 years**, FRONTLINE Plus for Dogs can be used on puppies as young as eight weeks old, weighing 5 pounds or more, and is easy to apply with one monthly dose providing protection from fleas & ticks for a full 30 days. **Data showing 20 years of trust in killing fleas and ticks is on file at Boehringer Ingelheim.

FRONTLINE Plus also comes in a formula designed for cats and kittens eight weeks of age and older, 1.5lbs. and over so you can protect the dogs or cats in your house from fleas and ticks with FRONTLINE Brand Products.

Treat all dogs or cats in your household monthly to effectively control fleas and ticks and prevent the establishment of new flea infestations.

Subscribe & save today to make it easier to keep your dogs or cats protected year-round and make sure you never run out of FRONTLINE Plus.

K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 lbs. from fleas, ticks, mosquitoes, biting flies and lice

Kills fleas within 12 hours of application

Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die

Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours

No prescription needed

Waterproof flea and tick treatment for cats and kittens: Frontline Plus for Cats provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your cat. This product is approved for use on cats and kittens 1.5 lbs and over.

Break the flea life cycle with frontline: Frontline flea and tick treatment for cats kills adult fleas plus flea eggs and larvae to stop existing infestations and prevent establishment of new infestations.

Kills fleas and ticks: Frontline flea and tick treatment for cats kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.

Trusted flea and tick protection for cats: Frontline Plus for Cats has been trusted by veterinarians for nearly 20 years. Made with 2 tough killing ingredients, fipronil and (S)-methoprene – one to kill adult fleas and ticks and the second to kill flea eggs and larvae – this fast-acting, long-lasting protection provides flea and tick control for cats and kittens 8 weeks and older.

Lasting flea and tick protection: Frontline's long-lasting formula is stored in the oil glands of the cat's skin to give non-stop flea and tick protection for a full 30 days. Frontline flea and tick treatment for cats works non-stop for a full 30 days. A 3-dose supply lasts for 3 months.

K9 Advantix II Small Dog 30-day treatment & prevention protects dogs 4-10 lbs. from fleas, ticks, mosquitoes, biting flies and lice

Kills fleas within 12 hours of application

Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die

Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours

No prescription needed

K9 Advantix II Medium Dog 30-day treatment & prevention protects dogs 11-20 lbs. from fleas, ticks, mosquitoes, biting flies and lice

Kills fleas within 12 hours of application

Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die

Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours

No prescription needed

Keep your dog protected from fleas & ticks all month long with FRONTLINE Plus for Dogs a fast-acting, waterproof flea & tick topical that's proven to kill fleas, flea eggs, flea larvae, chewing lice, and ticks that can transmit Lyme disease.

Break the flea life cycle with FRONTLINE Plus. Specially formulated with fipronil and (S)-methoprene to kill existing adult fleas, flea eggs and flea larvae to guard against further infestations for flea control.

Trusted by pet owners for over 20 years, FRONTLINE Plus for Dogs can be used on puppies as young as eight weeks old, weighing 5 pounds or more, and is easy to apply with one monthly dose providing protection from fleas & ticks for a full 30 days.

FRONTLINE Plus also comes in a formula designed for cats and kittens eight weeks of age and older, 1.5lbs. and over so you can protect the dogs or cats in your house from fleas and ticks with FRONTLINE Brand Products.

Treat all dogs or cats in your household monthly to effectively control fleas and ticks and prevent the establishment of new flea infestations.

Subscribe & save today to make it easier to keep your dogs or cats protected year-round and make sure you never run out of FRONTLINE Plus.

Waterproof flea and tick treatment for cats and kittens: Frontline Plus for Cats provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your cat. This product is approved for use on cats and kittens 1.5 lbs and over.

Break the flea life cycle with frontline: Frontline flea and tick treatment for cats kills adult fleas plus flea eggs and larvae to stop existing infestations and prevent establishment of new infestations.

Kills fleas and ticks: Frontline flea and tick treatment for cats kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.

Trusted flea and tick protection for cats: Frontline Plus for Cats has been trusted by veterinarians for nearly 20 years. Made with 2 tough killing ingredients, fipronil and (S)-methoprene – one to kill adult fleas and ticks and the second to kill flea eggs and larvae – this fast-acting, long-lasting protection provides flea and tick control for cats and kittens 8 weeks and older.

Lasting flea and tick protection: Frontline's long-lasting formula is stored in the oil glands of the cat's skin to give non-stop flea and tick protection for a full 30 days. Frontline flea and tick treatment for cats works non-stop for a full 30 days. A 3-dose supply lasts for 3 months.

FAST-ACTING: One oral flea tablet starts killing fleas within 30 minutes of administration.

SAFE TO USE: This oral flea medication is safe for puppies and dogs from 2-25 lbs. 4 weeks and older, when used as directed.

TREAT RE-INFESTATIONS FAST: If your pet gets re-invested with fleas simply apply another dose as often as once a day. CapAction Flea Pills are even safe for use on pregnant or breeding dogs.

EASY TO USE: Without the mess and rubbing off of a flea and tick topical treatment and without the need of a veterinarian's prescription this dog flea tablet is administered orally to kill adult fleas fast.

KILL FLEAS EFFICIENTLY: CapAction flea treatment has 6 doses and kills adult fleas that may cause allergy dermatitis.