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FRONTLINE Spot On Flea & Tick Treatment for Large Dogs, 20–40 kg, 3 Pipettes

FRONTLINE Spot On is a liquid flea and tick treatment supplied as three pipettes for large dogs weighing 20–40 kg. The listing claims fleas are killed within 24 hours and ticks within 48 hours, with monthly application intended to cover three months.

At a glance

  • For dogs in the 20–40 kg weight band, as stated in the title.
  • The listing claims fleas are killed within 24 hours and ticks within 48 hours after they latch onto a treated dog.
  • Apply one pipette to the skin at the back of the neck, according to the listing.
  • Monthly treatment is claimed, with three pipettes described as three months of protection.
Price
£15.39Save 50%

Reference price: £30.49

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • Three individual pipettes suit a monthly schedule spanning three applications.
  • Liquid spot-on administration avoids giving a chew or tablet.

Technical specifications

11 specifications
Identity
BrandFRONTLINE
Model2042219124
Target animalDog
Dog sizeLarge
Product details
FormLiquid
ScentFragrance free
ColourClear
Listed weight0.01 Pounds
Listed volume8.04 Fluid Ounces
Age range descriptionPuppy
Country of originFrance

What to know before buying

Listing details to confirm

The listing says the product is for large dogs weighing 20–40 kg, while its age-range field says “Puppy”. Confirm the dog's suitability and follow the product label before use. The listed item volume of 8.04 Fluid Ounces also appears inconsistent with a three-pipette pack, so verify the pack details.

Who is it for?

A good fit for

  • Dog owners seeking a three-application spot-on flea and tick treatment for a dog within the stated 20–40 kg range.
  • Owners who prefer applying liquid to the skin rather than administering an oral treatment.

Less suited to

  • Dogs outside the stated 20–40 kg range, unless the product label specifically confirms suitability.
FRONTLINE Spot On Flea & Tick Treatment for Large Dogs, 20–40 kg, 3 Pipettes · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 35,215 ratings
  • 5 stars72%72%
  • 4 stars15%15%
  • 3 stars6%6%
  • 2 stars2%2%
  • 1 star5%5%

Customer feedback praises ease of administration, but reports on effectiveness, flea reduction and value are mixed. Some customers say the treatment did not work, and feedback differs on side effects, including reports of rashes. For buyers considering this monthly liquid treatment, these differing experiences matter alongside the listing's claimed kill times and application instructions. The aggregate ratings lean positive overall, but they do not resolve the reported variation in results or reactions.

Positive themes

  • Customers praise how easy the treatment is to administer.

Mixed feedback

  • Customers report mixed results for effectiveness, flea reduction and value.
  • Feedback differs on side effects, with some reporting no ill effects and others mentioning rashes.

Frequently asked questions

How many pipettes are included?

The title and listing describe three pipettes, intended for three monthly applications.

What dog weight range is stated?

The title specifies large dogs weighing 20–40 kg.

How is the treatment applied?

The listing says to empty one pipette onto the skin at the back of the dog's neck.

How quickly are fleas and ticks claimed to be killed?

The listing claims fleas are killed within 24 hours and ticks within 48 hours after latching onto a treated dog.

FRONTLINE Spot On Flea & Tick Treatment for Large Dogs, 20–40 kg, 3 Pipettes · photo 3
Additional product photo 3

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