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NFA-VPS Over the Counter Companion Animal

Advantage 100 Spot-on Solution for Dogs

Active ingredient: Imidacloprid

Form

Spot-on

Species

Dogs

Manufacturer

Elanco GmbH

VMD MA No.

52127/5140

What it's used for

Fleas on dogs are killed within one day following treatment. One treatment prevents further flea infestation for four weeks. The veterinary medicinal produ...

Full indications, dosage and side effects ↓
View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Imidacloprid

  1. 1

    Ask your vet for a written prescription

    They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.

  2. 2

    Fill it at a registered online retailer

    The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Clinical information

Advantage 100 Spot-on Solution for Dogs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Fleas on dogs are killed within one day following treatment. One treatment prevents
further flea infestation for four weeks. The veterinary medicinal product can be used as
part of a treatment strategy for the control of Flea Allergy Dermatitis (FAD) where this
has been previously diagnosed by a veterinary surgeon.
Underdosing could result in ineffective use and may favour resistance development.
To ensure a correct dosage, body weight should be determined as accurately as
possible.
Dosage and treatment schedule
The recommended minimum dose is 10 mg imidacloprid per kg body weight (bw),
equivalent to 0.1 ml/kg bw of the veterinary medicinal product.
Dog weight
(kg bw)
Pipette size to be
used
Pipette volume
(ml)
Imidacloprid (mg/kg)
bw
≥ 4 < 10 kgAdvantage 100 mg
for dogs
1.0minimum of 10
For dogs smaller 4 kg or greater 10 kg bw, use an appropriate available pipette size to
achieve the recommended dose for the weight of the animal to be treated.
For treatment or prevention of infestations with the parasites indicated for use of this
veterinary medicinal product, the need for and frequency of re-treatment(s) should be
based on professional advice and should take into account the local epidemiological
situation and the animal’s lifestyle.
In case of biting louse infestation, a further veterinary examination 30 days after
treatment is recommended as some animals may require a second treatment.
Method of administration
Remove one pipette from the package. Hold pipette in an upright position, twist and pull
off cap. Use reversed cap to twist and remove seal from pipette.
With the dog in the standing position, part the coat between the shoulder blades until
the skin is visible. Place the tip of the pipette on the skin and squeeze firmly several
times to empty the contents directly onto the skin.
Do not apply an excessive amount of solution at any one spot that could cause some of
the solution to run off the side of the dog. Correct application will minimise the
opportunity for the dog to lick the veterinary medicinal product. Apply only to
undamaged skin.
Do not treat unweaned puppies of less than 8 weeks of age.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.
Dogs.
Very rare
(<1 animal / 10,000 animals
treated, including isolated
reports):
Agitation
Hypersalivation
Disorientation, Neurological signs (e.g. Depression,
Incoordination, Tremor)
Application site reaction (e.g. Hair loss, Itching,
Reddening of the skin, Skin lesion)
May occur if the dog licks the application site immediately after treatment due to the
bitter taste. This is not a sign of intoxication and disappears within some minutes
without treatment.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder <or its local representative> or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.
Unnecessary use of antiparasitics or use deviating from the instructions given in the
SPC may increase the resistance selection pressure and lead to reduced efficacy. The
decision to use the veterinary medicinal product should be based on confirmation of the
parasitic species and burden, or of the risk of infestation based on its epidemiological
features, for each individual animal.
The possibility that other animals in the same household can be a source of re-infection
with fleas and biting lice should be considered, and these should be treated as
necessary with an appropriate product.
Re-infestation from emergence of new fleas in the environment may continue to occur
for six weeks or longer after treatment is initiated. More than one treatment may
therefore be required, depending on the level of fleas in the environment. To aid
reduction in environmental challenge, the additional use of a suitable environmental
treatment against adult fleas and their developing stages is recommended, especially of
the animal's basket, bedding and regular resting areas such as carpets and soft
furnishings. In order to reduce further the environmental challenge, it is recommended
that all dogs in the household are treated. Treatment of nursing bitches controls flea
infestations on both dam and offspring.
The veterinary medicinal product remains effective if the animal becomes wet, for
example after swimming or exposure to heavy rain. However, in cases of frequent
swimming or bathing re-treatment may become necessary, depending on the presence
of fleas in the environment. In these cases do not treat more frequently than once
weekly.

Special precautions for safe use in the target species:
This veterinary medicinal product is for topical use and should not be administered
orally.
Care should be taken to avoid the contents of the pipette coming into contact with the
eyes or mouth of the recipient animal.
Do not allow recently treated animals to groom each other.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
This veterinary medicinal product contains benzyl alcohol and may cause skin
sensitisation or transient skin reactions in rare cases (for example, irritation, tingling).
People with known hypersensitivity to imidacloprid and benzyl alcohol should avoid
contact with the veterinary medicinal product.
Avoid contact between the veterinary medicinal product and skin, eyes or mouth.
Do not massage the application site.
Do not eat, drink or smoke during application.
Wash off any skin contamination with soap and water.
If the veterinary medicinal product gets into eyes accidentally, the eyes should be
thoroughly flushed with water.
If skin or eye irritation persists, or the veterinary medicinal product is accidentally
swallowed, seek medical advice immediately and show the package leaflet or the label
to the physician.
After application, do not stroke or groom animals until application site is dry.
Wash hands thoroughly after use.
Special precautions for the protection of the environment:
Imidacloprid is toxic to aquatic organisms. To avoid adverse effects on aquatic
organisms, treated dogs should not be allowed to enter surface water for 48 hours after
treatment. See also section 5.5.
Other precautions:
The solvent in this veterinary medicinal product may stain certain materials including
leather, fabrics, plastics and finished surfaces. Allow the application site to dry before
permitting contact with such materials.
No incompatibility has been observed between this veterinary medicinal product at twice
the recommended dose and the following commonly used veterinary medicinal
products: fenthion, lufenuron, milbemycin, febantel, pyrantel and praziquantel. The
compatibility of the veterinary medicinal product was also demonstrated with a wide
range of routine treatments under field conditions including vaccination.
This veterinary medicinal product does not require any special storage conditions.
Keep the blister in the outer carton.
Not applicable.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.

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