Don’t let them wriggle their way into your pet’s life!

Protect against Heartworm

Adult heartworms in dogs can be up to 30 cm long and can cause serious disease. They live in the heart and blood vessels of the lungs, interfering with circulation and damaging tissues.

How are they transmitted?

Heartworm is transmitted by mosquitoes, so all dogs are potentially at risk. Heartworm prevention should be started for your dog by 8 weeks of age, and they should stay on a preventative treatment for life to avoid heartworm disease.

How can I protect my dog?

HEARTGARD PLUS provides monthly heartworm prevention and also controls roundworms and hookworms.

Intestinal worms

Puppies and kittens can be infected with worms from their mother before birth or shortly after. Some can be a danger to people too, so treatment with a worming product is essential for the health of your pet, other animals at home, and your family.


Puppies and kittens can be infected from their mother during pregnancy and be born with roundworms or pick them up after birth through their mothers’ milk. Puppies with roundworms may have a pot-bellied appearance, weight loss or a dull coat.


Hookworms feed on blood from the lining of the intestines in dogs and cats and can cause anaemia and diarrhoea. Hookworms also pose a health risk to humans.


The most common tapeworms are transmitted by fleas that are infected with the tapeworm larvae which cats or dogs ingest when they groom themselves. Eliminated in the faeces, tapeworm segments look like rice grains stuck to the hair around the anus.


As this worm is transmitted by fleas, good flea control can help prevent this type of tapeworm infection. In rural areas, ask your vet about controlling a different tapeworm, the hydatid tapeworm, as it can have serious human health implications.


Whipworms are more likely when multiple dogs live together and have access to faecal material. Heavy infestations may lead to anaemia and bloody diarrhoea. Whipworm eggs can survive in the external environment for several years.

Are worms a danger to humans?

Intestinal worms can pose a threat to humans so it's essential to worm your pet regularly. PARAGARD treats and controls all major intestinal worms including roundworm, whipworm, hookworm and tapeworms (including hydatid tapeworm) in dogs, and roundworm, hookworm and tapeworm in cats.

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