How does BarS flea treatment for dogs work? - briefly
The treatment delivers a systemic insecticide that spreads across the dog’s skin surface, contacting and killing fleas shortly after application. It interferes with the parasites’ nervous system, halting the infestation.
How does BarS flea treatment for dogs work? - in detail
BarS flea control for dogs delivers its active ingredient, dinotefuran, through a topical solution applied to the skin. After application, the compound spreads across the coat via natural oil distribution, reaching the epidermis and underlying dermal layers.
The medication penetrates the flea’s nervous system in three stages:
- Contact absorption: Adult fleas encounter the treated surface while moving on the host’s skin. Dinotefuran binds to nicotinic acetylcholine receptors, causing rapid paralysis.
- Feeding ingestion: When a flea begins to feed, the drug enters its digestive tract, reinforcing the neurotoxic effect and ensuring mortality within hours.
- Reproductive interruption: Surviving adult fleas are unable to lay viable eggs, reducing environmental contamination and breaking the life cycle.
BarS also exhibits a residual effect lasting up to 30 days. Continuous diffusion of the active substance maintains lethal concentrations on the skin surface, protecting the animal from new infestations throughout the treatment interval.
Key pharmacokinetic properties include:
- Rapid onset: Flea kill occurs within 4‑6 hours after exposure.
- Systemic safety: Limited absorption into the bloodstream minimizes risk to the host; the formulation is designed for dermal action only.
- Broad spectrum: Effective against adult fleas, newly emerged adults, and emerging larvae that contact treated skin.
The product’s efficacy relies on proper application: a single dose applied directly to the mid‑neck region spreads evenly, ensuring full coat coverage. Reapplication after the indicated period restores protective levels and maintains control of the flea population.