Best Dog Wormer UK: How and When to Worm Your Dog

Intestinal worms are one of the most common health issues in UK dogs, and some species can also infect humans — particularly children. Regular worming is an essential part of responsible dog ownership, not an optional extra.

Types of Worms in UK Dogs

Roundworms (Toxocara canis) are the most common worm in dogs. Puppies can be born infected, and the larvae can be passed in milk. In adult dogs, dormant larvae reactivate during pregnancy. Roundworm eggs can persist in soil for years and are a genuine public health concern — children who ingest eggs can develop toxocariasis, a condition that can affect the eyes and nervous system.

Tapeworms are flat, segmented worms transmitted via fleas (Dipylidium caninum) or through eating raw meat and offal (Echinococcus, Taenia species). You may notice white rice-like segments around your dog's rear end or in their faeces.

Hookworms and whipworms are less common in the UK but do occur. Hookworms can cause anaemia and are capable of penetrating human skin.

Lungworm (Angiostrongylus vasorum) is a growing concern in the UK, spread through eating slugs, snails or their slime trails. It requires a specific treatment — standard wormers don't cover it.

How Often Should You Worm Your Dog?

  • Puppies: every 2 weeks from 2 weeks of age until 12 weeks, then monthly until 6 months
  • Adult dogs (low risk): every 3 months
  • Adult dogs (higher risk — hunting, raw fed, in contact with children): monthly
  • Pregnant bitches: under veterinary guidance

Choosing a Wormer

Broad-spectrum treatments cover both roundworms and tapeworms and are the most practical choice for routine worming. Look for products containing fenbendazole (Panacur), praziquantel + pyrantel (Drontal) or milbemycin + praziquantel (Milbemax).

Lungworm prevention requires a prescription product containing milbemycin oxime or imidacloprid + moxidectin (Advocate). If your dog regularly eats grass and slugs are present, speak to your vet about adding lungworm cover.

Worming products come as tablets, pastes, granules (to sprinkle on food) and spot-ons. Tablets remain the most widely used — some are flavoured and readily accepted by most dogs.

Signs Your Dog May Have Worms

  • Visible worms or segments in faeces or around the rear end
  • Pot-bellied appearance (especially in puppies)
  • Scooting along the floor
  • Weight loss despite normal appetite
  • Dull coat and general poor condition
  • Coughing (a potential sign of lungworm)

Some dogs show no outward signs at all, which is why routine prevention matters regardless of symptoms.

Browse our dog worming treatments at UK9 Petcare including tablets, granules and spot-ons from leading brands.

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