A tasty combination chew for dogs with vet grade protection. Simparica TRIO provides triple action protection from fleas, ticks, intestinal worms and deadly heartworm in a tasty liver flavoured monthly chew. Simparica TRIO: - Kills fleas fast - Kills paralysis ticks - Prevents heartworm disease - Treats intestinal worms - Monthly dosing Simparica TRIO is a tasty monthly chew that provides triple protection against a trio of the biggest threats facing our dogs. Fleas and ticks, intestinal worms and deadly heartworm. Just one dose of Simparica TRIO provides triple action protection: - Kills fleas before they can lay eggs - preventing your dog and home from flea infestation - Controls flea allergy dermatitis - bringing relief to you itchy dog - Treats and controls paralysis ticks and brown dog ticks - minimising risk of paralysis and infection - Simparica TRIO has persistent flea and tick killing activity for 5 weeks (35 days) - 100% effective at preventing deadly heartworm disease