Interceptor Spectrum Tasty Chews are monthly chicken-flavoured worming chews that protect dogs against heartworm disease and the major intestinal worms. The range is dosed by weight tier, so the same product covers extra-small puppies through to large adult dogs — owners pick the chew sized to their dog and feed one a month as part of an ongoing worming routine.

Each chew combines milbemycin oxime and praziquantel: milbemycin handles heartworm prevention and treats roundworm, hookworm, and whipworm, while praziquantel covers all major tapeworms including hydatid tapeworm. Safe for puppies from 2 weeks of age, breeding, pregnant, and lactating dogs. The chicken flavouring is designed to be taken voluntarily as a treat, which removes the need to pill or hide the dose at mealtimes.

Single-chew monthly wormers replace the historic mix of pills and topicals most dog owners grew up with, and Interceptor Spectrum is one of the better-known options vets recommend for general worm control. Households with multiple dogs at different weights can run the whole pack on the same brand by pulling the right colour pack for each dog.