Product Information
Advantage Blue is a monthly spot-on flea treatment for extra large dogs weighing over 25kg. It kills fleas on contact, so fleas do not need to bite your dog for the treatment to work, and one application protects for a full month, staying effective after shampooing, swimming, or rain. No prescription is required, and it is safe for puppies from birth.
Health Benefits
- Kills fleas on contact: fleas do not need to bite your dog to be killed, which matters for dogs that react badly to flea bites
- Stops flea bites fast: reinfesting fleas stop biting within 3–5 minutes of landing on a treated dog
- Breaks the flea life cycle: kills flea larvae as well as adult fleas, helping prevent re-infestation of your dog and home
- Controls lice too: also kills lice on dogs
- A full month per dose: one spot-on application lasts for an entire month and can be used year-round
- Handles water: remains effective after shampoo treatment, swimming, or exposure to rain
- Safe from birth: suitable for puppies from birth and registered for use during pregnancy and lactation
Advantage Blue is a monthly spot-on flea treatment for dogs that gives extra large dogs over 25kg a full month of flea protection per application.
What It's Used For
- Flea infestations: kills adult fleas on contact and flea larvae with them, helping clear an active infestation and stop the next one building
- Flea allergy dermatitis (FAD): stopping flea bites within minutes helps manage this itchy allergic reaction, one of the most common dog skin conditions
- Ongoing monthly prevention: used once a month year-round, it helps keep your dog and home flea-free by breaking the flea life cycle
- Lice control: also kills lice on dogs
- Dogs that swim or bathe often: stays effective after water exposure, making it suited to water-loving dogs
Ingredients & Nutrients
Active constituent: Imidacloprid, a topical insecticide that spreads across your dog’s skin and coat and kills fleas on contact rather than through a bite.
| Product fact | Detail |
|---|---|
| Format | Topical spot-on pipette, applied to the skin |
| Kills | Adult fleas, flea larvae, and lice |
| Protection per dose | One month |
| Water resistance | Remains effective after shampooing, swimming, or rain |
Product Specifications & Care
- Species: dogs only; a separate Advantage range exists for cats.
- Weight range: extra large dogs over 25kg (blue pack); dogs over 50kg use two tubes per application, one between the shoulder blades and one on the midline of the back between the hips.
- Life stage: all ages, including puppies from birth; registered for use during pregnancy and lactation.
- Best for: monthly flea prevention, active flea infestations, and dogs with flea-bite sensitivity.
- Does not control ticks: Advantage covers fleas, flea larvae, and lice only; if you live in a paralysis tick area, consult your vet for alternatives or add-on tick protection.
- Prescription status: no prescription required.
- Also available as: Advantage Aqua for Medium Dogs (4–10kg) and Advantage Green for Puppies and Small Dogs (under 4kg).
How to apply Advantage Blue to your dog
Apply one full tube directly to the skin between your dog’s shoulder blades once a month. Hold the tube upright and pull off the cap, reverse the cap and push it back on to break the seal, then part the hair until the skin is visible, place the tip of the tube on the skin, and squeeze firmly twice. Remove collars before applying and replace them once the application site is dry, and keep the product away from your dog’s eyes and mouth.
If bathing between treatments, use a soap-free shampoo and let your dog dry fully before reapplying.
| Dog weight | Advantage pack |
|---|---|
| Under 4kg | Green |
| 4–10kg | Aqua |
| 10–25kg | Red |
| Over 25kg | Blue |
| Over 50kg | Two Blue tubes |
Why Dr Jack Ayerbe Recommends It
“Advantage has been one of my reliable recommendations for straightforward flea control for years. It is a simple monthly spot-on that kills fleas on contact, so they do not need to bite your dog first, and it breaks the flea life cycle by taking out the larvae as well. That matters for flea-allergic dogs, where every single bite counts. It does not cover ticks, so if you are in a paralysis tick area, talk to your vet about the right combination for full protection. If your dog is scratching at the tail base or you can see flea dirt in the coat, treat every pet in the household, not just the itchy one.”
— Dr. Jack Ayerbe OAM, Veterinarian & Vets Love Pets Partner
Shipping Rates
Shipping costs depend on the type of product and your order total. Prescription medications and non-prescription products are shipped separately, so shipping fees apply to each order individually.
Non-Prescription Products
Prescription Medication
Please note: Because prescription and non-prescription products ship separately, combined order totals don't count toward the non-prescription free shipping threshold.
Returns
Non-Prescription Products:
We offer a hassle-free return policy within 30 days for unopened items in original condition for exchange or store credit. Refunds are available if the product is faulty or not as described; however, food or treats cannot be returned once opened.
Prescription Medications:
We cannot accept change of mind returns for prescription products, given that there are laws that prohibit the resale of medication. Please make your selections carefully, and double-check your order before submitting.
Palatability Guarantee
Our Palatability Guarantee applies to selected brands, including Advance, Royal Canin, Purina, Hill's and 4CYTE, allowing you to return any unused portion of dry/wet food for an exchange or full refund.
Frequently Asked Questions
Advantage kills fleas on contact, which means fleas do not need to bite your dog for the treatment to work. Reinfesting fleas stop biting within 3–5 minutes of landing on a treated dog, and each application keeps killing fleas for a full month. Flea larvae in your dog’s surroundings are killed too, which helps break the flea life cycle and prevent re-infestation.
No, Advantage Blue is available over the counter without a veterinary prescription. Choose the pack by weight: the blue pack covers extra large dogs over 25kg. If you are unsure which parasites your dog needs protection from in your area, a quick chat with your vet can confirm the right combination.
No. Advantage covers adult fleas, flea larvae, and lice only, so dogs in paralysis tick areas or on a worming schedule need additional products alongside it. For more on this, Dr Jack Ayerbe explains dog parasite treatments in detail.
Dogs over 50kg should be treated with two tubes of Advantage Blue per monthly application: one tube applied between the shoulder blades and one on the midline of the back between the hips. Both tubes are applied directly to the skin in the same way as a single application. Advantage remains safe for use during pregnancy and lactation at the correct dose for body weight.
Yes, Advantage remains effective after shampoo treatment, swimming, or exposure to rain. If you bathe your dog between monthly treatments, use a soap-free shampoo and let the coat dry fully before the next application. There is no need to reapply after your dog gets wet.
