Simparica Trio is a monthly chewable for dogs that combines flea, tick, mite, intestinal worm and heartworm protection in a single tasty chew. This pack is for very small dogs weighing 2.6-5kg.

The active ingredients are sarolaner (fleas, ticks, mites), moxidectin (heartworm) and pyrantel (intestinal worms). One chew given monthly starts killing fleas within four hours and provides month-long protection against ticks including paralysis tick, plus prevents heartworm and treats roundworm and hookworm. Suitable from 8 weeks of age and from 1.25kg. The pork liver flavour is generally well-accepted, which is the practical advantage over spot-on or tablet treatments. Sold as 3-packs (3 months of protection).

Simparica Trio is one of the most prescribed all-in-one parasite preventatives in Australian vet clinics. The single-chew approach is the reason it gets picked over multi-product regimes. It's harder to forget one product than three.