How does a Foresto collar work against ticks? - briefly
The collar continuously releases a low‑dose acaricide that spreads over the animal’s coat and skin, killing ticks on contact. This steady diffusion maintains protective concentrations for the entire wearing period.
How does a Foresto collar work against ticks? - in detail
The Foresto collar delivers a continuous low‑dose supply of two synthetic pyrethroids, imidacloprid and flumethrin, through a polymer matrix that surrounds the band. As the collar warms against the animal’s skin, the matrix slowly releases the chemicals, which spread across the skin surface via diffusion and natural grooming.
Imidacloprid targets the nervous system of ectoparasites by binding to nicotinic acetylcholine receptors, causing paralysis and death after contact. Flumethrin acts on voltage‑gated sodium channels, disrupting nerve impulse transmission and providing both repellency and rapid knock‑down of attached ticks. The combination creates a dual‑action effect: immediate deterrence of attachment and lethal action against any tick that does manage to attach.
The release rate is calibrated to maintain an effective concentration of active ingredients on the animal’s coat for up to eight months. The collar’s diameter and dosage are adjusted for different weight classes, ensuring that the concentration remains within the therapeutic window without exceeding safety thresholds.
Safety profile:
- Ingredients are approved for use on dogs and cats; systemic absorption is minimal.
- The polymer matrix prevents accidental ingestion of the chemicals.
- No adverse effects reported in controlled field trials when used according to label instructions.
Efficacy data from independent studies show:
- 95 % reduction in tick infestations after four weeks of wear.
- 100 % mortality of attached ticks within 24 hours of contact.
- Sustained protection throughout the labeled duration, even under heavy environmental exposure.
Proper application requires fitting the collar snugly but not tightly, allowing two fingers to slide between the collar and the neck. Replacement is recommended after the specified period or if the collar becomes damaged.
In summary, the collar’s mechanism relies on controlled diffusion of two neurotoxic agents that simultaneously repel and eliminate ticks, delivering long‑lasting protection with a proven safety record.