What is the best pill for fleas on dogs? Capstar (nitenpyram) and Advantus (imidacloprid) are both over-the-counter (OTC) products that kill adult fleas very quickly. They can be very useful in instances of severe flea infestations, when the adult fleas need to be killed quickly and safely.
Does flea pills for dogs kill fleas? Flea pills vs.
Both oral and topical flea medications can kill existing fleas on your pet and prevent future infestations, and they both last from one to three months. Since both forms are considered effective and safe by veterinarians, the method you choose is up to you and your dog.
What pill kills fleas instantly?
What kills fleas instantly on a dog? Commercial Products from Your Veterinarian
The most common product used to kill fleas on dogs instantly is Nitenpyram, more commonly known as Capstar. This single-use tablet is administered orally and kills fleas within 30 minutes.