Overview of Bravecto S
Bravecto S is a veterinary prescription-only medicine for dogs, manufactured and globally distributed by Merck Animal Health. It is a single-active-ingredient product classified as a systemic ectoparasiticide.
Quick Facts
| Property | Description |
|---|---|
| Active Ingredient | Fluralaner |
| Form | Spot-on solution (Topical formulation) |
| Pharmacological Class | Isoxazoline class, systemic ectoparasiticide |
| General Purpose | Sustained antiparasitic control |
| Origin | Synthetic compound |
| Manufacturer | Merck Animal Health |
What Type of Veterinary Medicine is Bravecto S?
Bravecto S is classified as a systemic ectoparasiticide and acaricide, meaning it is designed to circulate within the animal's body to eliminate parasites after feeding. The active substance, Fluralaner, is a synthetic compound belonging to the isoxazoline class of chemicals. This chemical designation confirms its role as a novel entity specifically developed for highly targeted action against arthropods. Its formulation as a spot-on solution provides an effective alternative route of administration for dogs who may experience difficulty with oral medications.
Composition and Form: The Fluralaner Spot-On Solution
The medicine is presented as a topical formulation, specifically a clear spot-on solution, which is applied directly to the skin. The composition is centered on the pure active ingredient Fluralaner, dissolved within a specialized oily vehicle base. This formulation is critical because the vehicle aids the compound's efficient absorption through the skin into the dog’s systemic circulation following the topical administration. The drug is readily absorbed from the application site to maintain concentrations that support its extended duration of action.
How Bravecto S Provides General Antiparasitic Control
The general purpose of Bravecto S is to provide sustained, systemic efficacy for the continuous control of external parasites. This is achieved because Fluralaner works as a targeted neurotoxin, acting specifically on the nervous systems of arthropods (fleas and ticks). This mechanism results in the parasite's lethal paralysis upon exposure. The primary benefit of this systemic approach is its capacity for extended duration of action, ensuring effective and continuous management of the parasite burden with a low frequency of administration.
Regulatory References

