CAPSTAR 57mg for Large Dogs are tablets for large dogs, containing nitenpyram as an active ingredient. This neonicotinoid inhibits the transmission of excitation, which helps to fight pest infestations by causing the death of adult fleas. CAPSTAR 57mg for Large Dogs at a glance: Tablets to fight flea infestations in large adult dogs over 11.1kg Tablets with 57mg nitenpyram: for the treatment of flea infestations Kills fleas (Ctenocephalides felis): effects on fleas can be seen as rapidly as 15 - 30 minutes after administering the tablets to your pet. This occurs at the same time as the fleas' first blood meal after sufficient blood levels are reached in the host animal. They can be 95-100% effective within the first 6 hours. 100% efficacy can be achieved within 24 hours, without residual activity. Further information: Use during pregnancy or lactation: nitenpyram can be administered during pregnancy or lactation. Laboratory studies (on rats and rabbits) showed no signs of teratogenic-