"My veterinarian supplied me with Capstar (followed by Advantage) for my Corgi puppy. Poor thing, when I brought him home for the first time he was absolutely miserable! This stopped the itch and finally gave him some peace. He sleeps on a white blanket, and before I took it in for a thorough washing, the fleas were just falling off. It took approximately an hour to see results, and the outcome was incredible. The pill is relatively small, however, so make sure that your pet actually ingests it. My puppy was tricky and decided to hide it in his cheeks and spit it out when he assumed I wasn't watching."