Simparica Trio for dogs refers to a monthly oral medication used in the US to address multiple common parasites in canines. Once administered, this treatment works systemically to target fleas, ticks, heartworms, and certain intestinal worms. It is typically given based on a dog’s weight and age, following veterinary guidance. The formulation contains active ingredients that disrupt the normal function or development of parasites, reducing the likelihood of infestations and related health issues. After dosing, the medication protects for approximately one month, making it a routine part of parasite control programs designed to support overall canine health.