Best Sergeants Dog Flea Drops in 2026

Waterproof flea and tick treatment for dogs: Frontline Plus for Dogs provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your dog. This product is approved for use on dogs 23-44 lbs.

Break the flea life cycle with frontline: Frontline flea and tick treatment for dogs 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 dogs kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.

Waterproof flea and tick treatment for dogs: Frontline Plus for Dogs provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your dog. This product is approved for use on dogs 45-88 lbs.

Break the flea life cycle with Frontline: Frontline flea and tick treatment for dogs 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 dogs kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.

Waterproof flea and tick treatment for dogs: Frontline Plus for Dogs provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your dog. This product is approved for use on dogs 5-22 lbs.

Break the flea life cycle with frontline: Frontline flea and tick treatment for dogs 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 dogs kills fleas, flea eggs, lice, and ticks. This flea and tick treatment kills ticks, including those that may transmit Lyme disease.

FAST-ACTING FLEA TREATMENT: One oral flea tablet starts killing fleas within 30 minutes.

TACKLE FLEA INFESTATIONS FAST: Give Capstar oral flea treatment and watch dead fleas fall off your pet.

TREAT RE-INFESTATIONS FAST: If your pet gets re-invested with fleas, simply give another dose as often as once a day.

EFFECTIVE, WATERPROOF FLEA TREATMENT FOR DOGS: PetArmor Plus is a waterproof, flea & tick topical prevention for dogs that kills fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application.

TRUSTED, VET QUALITY FORMULA: Containing fipronil and (S)-methoprene, the same active ingredients as FRONTLINE Plus for Dogs. PetArmor Plus for Dogs has a powerful formula that starts to kill fleas within 24 hours.

BREAK THE FLEA CYCLE: Unlike other flea and tick treatments that may temporarily suppress flea activity, PETARMOR Plus Dog Flea Treatment works by effectively breaking the flea life cycle. Kill flea eggs and larvae to prevent re-infestation.

EFFECTIVE, WATERPROOF FLEA TREATMENT FOR CATS: PetArmor Plus is a waterproof, flea & tick topical prevention for cats that kills fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days after application.

TRUSTED, VET QUALITY FORMULA: Containing fipronil and (S)-methoprene, the same active ingredients as FRONTLINE Plus for Cats. PetArmor Plus for Cats has a powerful formula that starts to kill fleas within 24 hours.

BREAK THE FLEA CYCLE: Unlike other flea and tick treatments that may temporarily suppress flea activity, PETARMOR Plus Cat Flea Treatment works by effectively breaking the flea life cycle. Kill flea eggs and larvae to prevent re-infestation.

CAT FLEA AND TICK CONTROL: SENTRY Fiproguard topical flea and tick prevention for cats kills fleas, ticks and chewing lice for up to 30 days.

VET QUALITY FORMULA: SENTRY Fiproguard is a vet-quality formula flea treatment that contains the active ingredient fipronil.

FOR KITTENS AND CATS: Flea and tick control can be used on cats and kittens 8 weeks and older, and 1.5 pounds and older.

FAST-ACTING FLEA TREATMENT: One oral flea tablet starts killing fleas within 30 minutes.

TACKLE FLEA INFESTATIONS FAST: Give Capstar oral flea treatment and watch dead fleas fall off your pet.

TREAT RE-INFESTATIONS FAST: If your pet gets re-invested with fleas, simply give another dose as often as once a day.

Country Of Origin: United States

The Package Length Of The Product Is 1.25 Inches

The Package Width Of The Product Is 2.38 Inches

VET QUALITY FORMULA: SENTRY Fiproguard is a vet-quality formula flea treatment that contains fipronil.

DOG FLEA AND TICK CONTROL: SENTRY Fiproguard topical flea and tick prevention for dogs kills fleas, ticks and chewing lice for up to 30 days.

TICK PREVENTION: Fiproguard for dogs also kills brown dog ticks, American dog ticks, lone star ticks and deer ticks (which may transmit Lyme disease).

Flea and Tick Cat Squeeze-on

3 way protection

Kills Fleas and Ticks and Repels Mosquitoes

Kills fleas, ticks, flea eggs and flea larvae

Repels mosquitoes

Controls reinfestation for up to 9 weeks

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for dogs that kills fleas and ticks plus repels moquitoes for up to 4 weeks.

AFFORDABLE FLEA & TICK TREATMENT: Sergeant’s Guardian Flea and Tick is an affordable way to protect your dog from fleas, ticks and mosquitoes.

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks.

Effective and easy to use

Kills and repels fleas in as little as 1 hour

Kills ticks in as little as 3 hours

Kills fleas, ticks, flea eggs and flea larvae

Repels mosquitoes

Controls reinfestation for up to 9 weeks

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for cats and kittens that kills fleas and ticks plus repels moquitoes for up to 4 weeks.

AFFORDABLE & VET-QUALITY: Sergeant’s Guardian Flea and Tick is an affordable way to protect your cat from fleas, ticks and mosquitoes.

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks.

CAPSTAR IS YOUR FAST-ACTING ORAL FLEA TREATMENT FOR YOUR DOG: Start killing fleas within 30 minutes with one easy non-prescription tablet. CAPSTAR oral tablet for dogs is specially formulated for dogs 2-25 pounds.

PETARMOR PLUS IS YOUR TRUSTED, LONG-LASTING, VET-QUALITY TOPICAL FLEA AND TICK PREVENTION FOR YOUR SMALL DOG: Contains the same active ingredients as Frontline Plus for Dogs* that starts killing fleas and ticks within 24 hours of application and should be applied every 30 days to prevent reinfestations. PetArmor Plus Flea and Tick Waterproof Topical Protection for Medium Dogs is specially formulated for dogs weighing 5-22 pounds.

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for dogs that kills fleas and ticks plus repels moquitoes for up to 4 weeks

AFFORDABLE FLEA & TICK TREATMENT: Sergeant’s Guardian Flea and Tick is an affordable way to protect your dog from fleas, ticks and mosquitoes

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for dogs that kills fleas and ticks plus repels moquitoes for up to 4 weeks.

AFFORDABLE FLEA & TICK TREATMENT: Sergeant’s Guardian Flea and Tick is an affordable way to protect your dog from fleas, ticks and mosquitoes.

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks.

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for dogs that kills fleas and ticks plus repels moquitoes for up to 4 weeks.

AFFORDABLE FLEA & TICK TREATMENT: Sergeant’s Guardian Flea and Tick is an affordable way to protect your dog from fleas, ticks and mosquitoes.

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks.

CAT FLEA AND TICK CONTROL: SENTRY Fiproguard topical flea and tick prevention for cats kills fleas, ticks and chewing lice for up to 30 days.

VET QUALITY FORMULA: SENTRY Fiproguard is a vet-quality formula flea treatment that contains the active ingredient fipronil.

Kills fleas, ticks, and chewing lice

LONG-LASTING PROTECTION: Sergeant’s Guardian Topical is a flea and tick prevention for dogs that kills fleas and ticks plus repels moquitoes for up to 4 weeks.

AFFORDABLE FLEA & TICK TREATMENT: Sergeant’s Guardian Flea and Tick is an affordable way to protect your dog from fleas, ticks and mosquitoes.

QUICK-DRYING FORMULA: Sergeant's Guardian is quick drying flea and tick medication that is specially formulated for dogs over 12 weeks.

3 Month Supply

Contains fipronil, the #1 vet-recommended active ingredient

Kills fleas, flea eggs and larvae, chewing lice, and ticks – including those that may transmit Lyme disease

CAPSTAR IS YOUR FAST-ACTING ORAL FLEA TREATMENT FOR YOUR CAT: Start killing fleas within 30 minutes with one easy non-prescription tablet. CAPSTAR oral tablet is specially formulated for cats and kittens 2-25 pounds.

PETARMOR PLUS IS YOUR TRUSTED, LONG-LASTING, VET-QUALITY TOPICAL FLEA AND TICK PREVENTION FOR YOUR CAT: Contains the same active ingredients as Frontline Plus for Cats* that starts killing fleas and ticks within 24 hours of application and should be applied every 30 days to prevent reinfestations. PetArmor Plus Flea and Tick Waterproof Topical Protection for Cats is specially formulated for cats and kittens 8 weeks and older, over 1.5 pounds.

CAPSTAR IS YOUR FAST-ACTING ORAL FLEA TREATMENT FOR YOUR DOG: Start killing fleas within 30 minutes with one easy non-prescription tablet. CAPSTAR oral tablet for dogs is specially formulated for dogs over 25 pounds.

PETARMOR PLUS IS YOUR TRUSTED, LONG-LASTING, VET-QUALITY TOPICAL FLEA AND TICK PREVENTION FOR YOUR LARGE DOG: Contains the same active ingredients as Frontline Plus for Dogs* that starts killing fleas and ticks within 24 hours of application and should be applied every 30 days to prevent reinfestations. PetArmor Plus Flea and Tick Waterproof Topical Protection for Large Dogs is specially formulated for dogs weighing 45-88 pounds.

CAPSTAR IS YOUR FAST-ACTING ORAL FLEA TREATMENT FOR YOUR DOG: Start killing fleas within 30 minutes with one easy non-prescription tablet. CAPSTAR oral tablet for dogs is specially formulated for dogs over 25 pounds.

PETARMOR PLUS IS YOUR TRUSTED, LONG-LASTING, VET-QUALITY TOPICAL FLEA AND TICK PREVENTION FOR YOUR MEDIUM DOG: Contains the same active ingredients as Frontline Plus for Dogs* that starts killing fleas and ticks within 24 hours of application and should be applied every 30 days to prevent reinfestations. PetArmor Plus Flea and Tick Waterproof Topical Protection for Medium Dogs is specially formulated for dogs weighing 23-44 pounds.

CAPSTAR IS YOUR FAST-ACTING ORAL FLEA TREATMENT FOR YOUR DOG: Start killing fleas within 30 minutes with one easy non-prescription tablet. CAPSTAR oral tablet for dogs is specially formulated for dogs over 25 pounds.

PETARMOR PLUS IS YOUR TRUSTED, LONG-LASTING, VET-QUALITY TOPICAL FLEA AND TICK PREVENTION FOR YOUR X-LARGE DOG: Contains the same active ingredients as Frontline Plus for Dogs* that starts killing fleas and ticks within 24 hours of application and should be applied every 30 days to prevent reinfestations. PetArmor Plus Flea and Tick Waterproof Topical Protection for X-Large Dogs is specially formulated for dogs weighing 89-132 pounds.

3 Month Supply

Contains fipronil, the #1 vet-recommended active ingredient

Kills fleas, flea eggs and larvae, chewing lice, and ticks – including those that may transmit Lyme disease