D-cyphenothrin

Important safety and use flags

• Complete-scope boundary: this score covers the exact dog collar label—fleas, lice/biting lice, ixodid ticks, blood-sucking dipterans and the linked babesiosis, borreliosis and dirofilariasis claims. Component plausibility does not validate every pest, duration or pathogen endpoint.
• Evidence ceiling: no public controlled exact RolfClub collar trial or regulator assessment was found. Seresto/Scalibor collar data and fipronil/cyphenothrin spot-on studies use different formulations, release kinetics and doses; do not transfer their quantified efficacy or safety.
• Duration boundary: the exact instruction claims up to six months for fleas, lice/biting lice and ixodid ticks, but only up to five days for flying blood-sucking insects. Record fitting/replacement date and reassess parasites rather than assuming uniform six-month repellency.
• Disease-prevention boundary: a flea/tick/insect collar lowers exposure but cannot guarantee prevention of babesiosis, borreliosis or dirofilariasis. The five-day flying-insect claim cannot replace an authorised heartworm preventive, testing and geographic risk plan.
• Dog only—cat hazard: D-cyphenothrin is a pyrethroid and relevant US EPA dog-product mitigation warns cat exposure may be fatal. Never fit this collar to a cat; prevent licking, chewing and prolonged close contact by household cats and choose a cat-safe household protocol.
• Fit/physical safety: leave 1.0-1.5 cm between neck and collar, secure and trim excess, then recheck skin and fit as the dog grows or coat/weight changes. Prevent chewing/ingestion and snagging; replace a lost, damaged or excessively loose collar rather than improvising repairs.
• Stop and remove for important erythema, pruritus, alopecia, salivation, vomiting, weakness, ataxia, twitching, tremor or seizure; wash exposed skin with mild detergent/water and obtain veterinary/poison advice. Do not add another insectoacaricide without a product-specific veterinarian plan.
• Do not use under 3 months, during infectious disease or convalescence, or with hypersensitivity. Pregnancy/lactation require veterinarian benefit-risk consultation; the exact instruction does not provide a quantified reproductive safety dossier.
• Aquatic/environmental control: fipronil and pyrethroids are hazardous to aquatic organisms. Keep the dog/collar from watercourses, follow bathing/swimming restrictions or remove as directed, and dispose of the used collar and trimmed pieces safely—not in wastewater or fire.
• Handler/household control: keep the sealed and fitted collar, offcuts and removed collar away from children, food and feed. Wash hands after fitting or touching it, avoid sleeping/prolonged skin contact with the collar and do not allow small children close contact with the collared dog.