{"pageUrl":"https://www.comparethespecs.com/zh/pets/dog-gear-nutrition/which-dog-flea-and-tick-prevention-is-most-effective-against-various-life-stages-of-fleas-and-ticks","lastUpdated":"2026-09-13","totalProducts":3,"niche":"哪种狗用跳蚤和蜱虫预防药对跳蚤和蜱虫的各个生命周期阶段最有效？","description":"Which dog flea and tick prevention is most effective against various life stages of fleas and ticks?","products":[{"brand":"Merck Animal Health","model":"Bravecto Chews for Dogs 9.9 - 22 lbs","price_gbp":47.79,"origin_country":null,"specs":{"duration":"12 weeks for fleas and most ticks; 8 weeks for lone star ticks","side_effects":"Vomiting, lethargy, diarrhea, anorexia, pruritus","dosage_frequency":"Every 12 weeks","active_ingredient":"Fluralaner 250 mg","application_method":"Oral chew given with food","suitable_for_puppies":"Yes, for puppies 6 months and older"},"confidence_score":null,"sources":[{"label":"PetSmart","url":"https://www.petsmart.com/dog/flea-and-tick/flea-and-tick-pills/bravecto-chew-for-dogs-99-22-lbs-orange-box-1-chew-12-week-supply-67175.html","currency":"USD","source_country":"US","price":80.99,"price_gbp":59.9,"scraped_at":"2026-09-07T01:24:16.308542"},{"label":"Petco","url":"https://www.petco.com/product/bravecto-chewable-tablet-for-dogs-orange","currency":"USD","source_country":"US","price":80.99,"price_gbp":59.9,"scraped_at":"2026-09-07T01:24:16.308542"},{"label":"PetVM","url":"https://petvm.com/flea-tick/45-bravecto.html","currency":"USD","source_country":"US","price":64.61,"price_gbp":47.79,"scraped_at":"2026-09-07T01:24:16.308542"}],"summary":"Bravecto is a prescription oral chew containing 250 mg of fluralaner for dogs weighing over 9.9 to 22 lbs. One chew provides 12 weeks of flea and protection against most listed ticks, and 8 weeks of lone star tick protection. It is suitable for dogs and puppies 6 months and older.","ideal_for":"本产品适合需要覆盖跳蚤和蜱虫各个生命周期阶段防护的犬只，因为氟雷拉纳可杀灭成年跳蚤、防止跳蚤 infestations，并在一次口服给药后最长 12 周内杀灭多种蜱虫。"},{"brand":"Elanco","model":"Seresto Vet-Recommended Flea & Tick Prevention Collar for Small Dogs Under 18 lbs","price_gbp":44.37,"origin_country":null,"specs":{"duration":"8 months","waterproof":"No, water-resistant","side_effects":"Scratching, redness, itchiness, hair loss, dermatitis, inflammation, eczema, or other skin reactions","dosage_frequency":"Single application every 8 months","active_ingredient":"Imidacloprid 1.25g and flumethrin 0.56g","application_method":"Place collar around the dog's neck, adjust to fit two fingers beneath it, and trim excess length","suitable_for_puppies":"Yes, puppies 7 weeks and older"},"confidence_score":null,"sources":[{"label":"Petco","url":"https://www.petco.com/product/seresto-flea-and-tick-collar-for-dogs","currency":"USD","source_country":"US","price":59.99,"price_gbp":44.37,"scraped_at":"2026-09-07T01:24:16.308542"}],"summary":"This collar uses imidacloprid and flumethrin to kill fleas and repel and kill ticks through contact. It provides up to 8 months of protection for small dogs under 18 lbs and puppies at least 7 weeks old, and it is water-resistant and non-greasy.","ideal_for":"特别适合需要覆盖跳蚤各个生命周期阶段和蜱虫各个生命周期阶段的犬只，因为吡虫啉可杀灭成年跳蚤和跳蚤幼虫，而氟氯苯菊酯可驱避和杀灭所有生命周期阶段的蜱虫。"},{"brand":"Elanco","model":"Credelio Quattro Chewable Tablets for Dogs 3.3 lbs and Over","price_gbp":155.28,"origin_country":null,"specs":{"duration":"One month","side_effects":"Vomiting, diarrhea, decreased appetite, weight loss, dermatitis, itching, tremors, loss of balance, and seizures","dosage_frequency":"Once monthly","active_ingredient":"lotilaner, moxidectin, praziquantel, and pyrantel","application_method":"Oral chewable tablet given with food or within 30 minutes of a meal","suitable_for_puppies":"Yes, for puppies 8 weeks and older weighing 3.3 lbs or more"},"confidence_score":null,"sources":[{"label":"PetSmart","url":"https://www.petsmart.com/dog/flea-and-tick/flea-and-tick-pills/credelio-quattro-credelio-quattro-ca1-chewable-tablets-for-dogs-33-6-lbs-1-or-6-month-supply-92260.html","currency":"USD","source_country":"US","price":209.94,"price_gbp":155.28,"scraped_at":"2026-09-07T01:24:16.308542"},{"label":"PetMart Pharmacy","url":"https://www.petmartpharmacy.com/credelio-quattro-for-dogs-11522/","currency":"USD","source_country":"US","price":209.94,"price_gbp":155.28,"scraped_at":"2026-09-07T01:24:16.308542"}],"summary":"Credelio Quattro is a monthly oral chewable tablet for dogs and puppies weighing 3.3 lbs or more. It protects against fleas, ticks, heartworm disease, roundworms, hookworms, and tapeworms.","ideal_for":"适合需要针对跳蚤和蜱虫多个生命周期阶段进行防护的狗，因为lotilaner可杀灭成年跳蚤并治疗和控制四种蜱虫，同时该产品还可每月防护多种体内寄生虫。"}]}