10 Best Fast Acting Flea Treatment for Dogs in the UK 2025

Updated on 02/08/2025
#1
Free Shipping
  • Quick elimination of fleas: Capstar's fast-acting formula visibly kills fleas on your pet.
  • Beginning to work within 30 minutes, Capstar eliminates 95% to 100% of adult fleas in 6 hours.
  • Suitable for medium and large dogs, each tablet contains 57mg of Nitenpyram for pets weighing 11.5kg to 57kg.
  • Easy to administer; can be given with or without food, at a dosage of one tablet per day until fleas are no longer visible.
  • Effective as a first-line treatment against flea infestations due to its rapid action.
Read More
  • Quick elimination of fleas: Capstar's fast-acting formula visibly kills fleas on your pet.
  • Beginning to work within 30 minutes, Capstar eliminates 95% to 100% of adult fleas in 6 hours.
  • Suitable for medium and large dogs, each tablet contains 57mg of Nitenpyram for pets weighing 11.5kg to 57kg.
  • Easy to administer; can be given with or without food, at a dosage of one tablet per day until fleas are no longer visible.
  • Effective as a first-line treatment against flea infestations due to its rapid action.
Read More
#2
Value for Money
8% Off
Free Shipping
  • Flea and tick protection with Advantage Chewable Tablets for Dogs, formulated as a beef-flavored chewable for effective elimination.
  • Rapid action against fleas, eradicating current infestations and preventing new ones quickly before they can reproduce.
  • Provides one month of continuous protection against reinfestation by killing existing fleas and preventing new ones for 30 days.
  • Simple administration for puppies and adult dogs with a once-a-month beef-flavored tablet, avoiding messy treatments.
  • Clinically proven to prevent and treat flea infestations, ensuring a flea-free environment for your pet and home.
Read More
  • Flea and tick protection with Advantage Chewable Tablets for Dogs, formulated as a beef-flavored chewable for effective elimination.
  • Rapid action against fleas, eradicating current infestations and preventing new ones quickly before they can reproduce.
  • Provides one month of continuous protection against reinfestation by killing existing fleas and preventing new ones for 30 days.
  • Simple administration for puppies and adult dogs with a once-a-month beef-flavored tablet, avoiding messy treatments.
  • Clinically proven to prevent and treat flea infestations, ensuring a flea-free environment for your pet and home.
Read More
#3
30% Off
Free Shipping
  • Effectively eliminates fleas within 24 hours and ticks within 48 hours.
  • Provides protection against fleas for up to five weeks with monthly treatments.
  • User-friendly application by parting the coat and applying the formula directly to the skin.
  • Appropriate for dogs and puppies from 8 weeks old, weighing between 2-10kg.
  • Contains fipronil, a vet-strength ingredient that disrupts flea nervous systems, often leading to increased visibility of fleas after treatment.
  • To combat flea infestations, it's recommended to also treat the living environment, such as pet bedding and carpets.
Read More
  • Effectively eliminates fleas within 24 hours and ticks within 48 hours.
  • Provides protection against fleas for up to five weeks with monthly treatments.
  • User-friendly application by parting the coat and applying the formula directly to the skin.
  • Appropriate for dogs and puppies from 8 weeks old, weighing between 2-10kg.
  • Contains fipronil, a vet-strength ingredient that disrupts flea nervous systems, often leading to increased visibility of fleas after treatment.
  • To combat flea infestations, it's recommended to also treat the living environment, such as pet bedding and carpets.
Read More
#4
23% Off
Free Shipping
  • Formulated to eliminate fleas, ticks, mites, and their eggs effectively without using harsh chemicals.
  • Effective for both active infestations and routine prevention, safe for use around family members.
  • Can be applied on various surfaces, including furniture, carpets, and outdoor areas.
  • Utilizes plant-based ingredients like peppermint oil, eucalyptus, and lemongrass for flea and tick control.
  • Safe for direct application on dogs and puppies aged 12 weeks and older.
Read More
  • Formulated to eliminate fleas, ticks, mites, and their eggs effectively without using harsh chemicals.
  • Effective for both active infestations and routine prevention, safe for use around family members.
  • Can be applied on various surfaces, including furniture, carpets, and outdoor areas.
  • Utilizes plant-based ingredients like peppermint oil, eucalyptus, and lemongrass for flea and tick control.
  • Safe for direct application on dogs and puppies aged 12 weeks and older.
Read More
#5
16% Off
Free Shipping
  • Provides immediate relief from fleas within 24 hours.
  • Designed for large dogs weighing over 11kg.
  • Coated tablets can be given directly or mixed with food.
  • Administer one tablet for dogs 11-57kg; two tablets for dogs over 57kg, following package instructions.
  • Includes 3 tablets for monthly use in a flea control program.
  • For optimal results, combine with Bob Martin Clear Dog Wormer.
Read More
  • Provides immediate relief from fleas within 24 hours.
  • Designed for large dogs weighing over 11kg.
  • Coated tablets can be given directly or mixed with food.
  • Administer one tablet for dogs 11-57kg; two tablets for dogs over 57kg, following package instructions.
  • Includes 3 tablets for monthly use in a flea control program.
  • For optimal results, combine with Bob Martin Clear Dog Wormer.
#6
10% Off
Free Shipping
  • Contains 3 treatment tablets for dogs
  • Suitable for puppies and dogs over 4 weeks old
  • Effective for dogs weighing over 11 kg
  • Begins killing fleas within 15 minutes
Read More
  • Contains 3 treatment tablets for dogs
  • Suitable for puppies and dogs over 4 weeks old
  • Effective for dogs weighing over 11 kg
  • Begins killing fleas within 15 minutes
#7
Free Shipping
  • Eliminates fleas within 24 hours and ticks within 48 hours through a spot-on treatment applied to the dog's skin.
  • For medium dogs over 8 weeks old, weighing between 10-20kg.
  • Easy application: part the coat, apply half the pipette at the back of the head and the other half between the shoulder blades.
  • Prevents re-infestation with the active ingredient Fipronil, killing fleas and ticks quickly.
  • Kills fleas for up to 8 weeks and ticks for up to 4 weeks with 3 pipettes for monthly use as part of a flea control program.
Read More
  • Eliminates fleas within 24 hours and ticks within 48 hours through a spot-on treatment applied to the dog's skin.
  • For medium dogs over 8 weeks old, weighing between 10-20kg.
  • Easy application: part the coat, apply half the pipette at the back of the head and the other half between the shoulder blades.
  • Prevents re-infestation with the active ingredient Fipronil, killing fleas and ticks quickly.
  • Kills fleas for up to 8 weeks and ticks for up to 4 weeks with 3 pipettes for monthly use as part of a flea control program.
Read More
#8
Free Shipping
  • Natural, non-toxic ingredients ensure safe flea management for pets and homes.
  • Easy-to-use spray targets areas prone to fleas, with management recommended every 3 days for optimal results.
  • Weekly application helps prevent flea infestations during peak seasons.
  • Safe for various surfaces including carpets, bedding, and upholstery, leaving a light lemongrass scent.
  • Long-lasting formula designed to provide effective flea control for months.
Read More
  • Natural, non-toxic ingredients ensure safe flea management for pets and homes.
  • Easy-to-use spray targets areas prone to fleas, with management recommended every 3 days for optimal results.
  • Weekly application helps prevent flea infestations during peak seasons.
  • Safe for various surfaces including carpets, bedding, and upholstery, leaving a light lemongrass scent.
  • Long-lasting formula designed to provide effective flea control for months.
Read More
#9
Free Shipping
  • Quick efficacy: Capstar flea tablets effectively eliminate fleas, allowing owners to visibly notice dead fleas on their pets.
  • Rapid action: Within 30 minutes, Capstar begins killing fleas, eliminating nearly all adult fleas within 6 hours.
  • Designed for medium and large dogs: Each tablet contains 57mg of Nitenpyram, suitable for dogs weighing between 11.5kg and 57kg.
  • Easy administration: Tablets can be administered with or without food, with one tablet needed per day until flea control is achieved.
  • Initial infestation control: Capstar serves as an effective first step in addressing flea infestations thanks to its fast-acting formula.
Read More
  • Quick efficacy: Capstar flea tablets effectively eliminate fleas, allowing owners to visibly notice dead fleas on their pets.
  • Rapid action: Within 30 minutes, Capstar begins killing fleas, eliminating nearly all adult fleas within 6 hours.
  • Designed for medium and large dogs: Each tablet contains 57mg of Nitenpyram, suitable for dogs weighing between 11.5kg and 57kg.
  • Easy administration: Tablets can be administered with or without food, with one tablet needed per day until flea control is achieved.
  • Initial infestation control: Capstar serves as an effective first step in addressing flea infestations thanks to its fast-acting formula.
Read More
#10
41% Off
Free Shipping
  • Fast-acting flea treatment for dogs that kills fleas instantly and ticks within 24-48 hours.
  • Effective against both fleas and ticks, helping to reduce the risk of disease transmission.
  • Easy application with a pipette designed to deliver treatment directly to the back of the dog's neck.
  • Contains vet-strength fipronil for rapid relief from flea infestations and itching, no prescription needed.
  • Provides year-round protection with a monthly treatment plan.
Read More
  • Fast-acting flea treatment for dogs that kills fleas instantly and ticks within 24-48 hours.
  • Effective against both fleas and ticks, helping to reduce the risk of disease transmission.
  • Easy application with a pipette designed to deliver treatment directly to the back of the dog's neck.
  • Contains vet-strength fipronil for rapid relief from flea infestations and itching, no prescription needed.
  • Provides year-round protection with a monthly treatment plan.
Read More
Dog Flea Treatment French Bulldog See All
Chewable Flea And Tick Tablets For Dogs See All
Flea And Mite Treatment For Dogs See All