Interceptor Spectrum for Medium Dogs 11–22kg in the 6-chew pack is a six-month supply of monthly worming protection for medium-breed dogs. The yellow pack covers the standard medium weight band and pairs heartworm prevention with broad intestinal worm cover in a single chicken-flavoured chew given once a month.

Each chew combines milbemycin oxime and praziquantel: milbemycin prevents heartworm disease and treats roundworm, hookworm, and whipworm, while praziquantel covers all common tapeworms including hydatid tapeworm — important in households where dogs have access to raw offal or live in tapeworm-active regions. Vet-recommended and easy to administer, the chew is designed to be taken voluntarily, removing the need to pill or wrap the dose in food.

Six-month packs suit households already settled into a monthly worming routine, removing the need for repeated top-up purchases. Interceptor Spectrum's combination of broad coverage and palatable format keeps it on the regular reorder list for many dog owners — especially those running mixed-breed households where one wormer needs to fit several dogs.