Cat Worming Schedule UK

According to the PDSA and Blue Cross, the most common intestinal parasites in British pet cats are:

Roundworm poses a zoonotic risk — eggs can infect people, especially children. Regular worming protects cats and household members. That is why indoor cats are not “optional”.

According to the PDSA, kittens should be wormed on this schedule:

Kittens acquire roundworms from their queen before birth and through milk. Early treatment reduces worm burden and limits eggs in the home. Confirm the product is licensed for kittens of that age and weight.

Most UK vets recommend worming adult cats every one to three months. Frequency depends on indoor vs outdoor life, flea control, children at home, and the product’s spectrum.

There is no single rule for every household. Run the worming schedule checker with “cat” selected, then ask your vet which licensed product matches.

Tapeworm segments look like small white grains around the anus, in bedding or in faeces. Cats usually pick them up by swallowing infected fleas while grooming, or by eating prey.

Not every roundworm tablet covers tapeworm. Because fleas and tapeworm travel together, flea prevention is part of worming. If segments return after treatment, review fleas with your vet rather than stacking random shop products.

According to the BVA, parasite treatments should be chosen for species, weight and lifestyle. Problems with non-veterinary products include:

• Underdosing a 5 kg cat with a 2–4 kg product
• Wrong spectrum — roundworm but not tapeworm
• Unsuitable for age — not licensed for young kittens
• Dog wormers on cats — some canine ingredients are toxic to cats. Never swap.

Buy from your vet or a pharmacy following veterinary advice. Indoor cats still meet eggs on shoes. Skipping worming because “she never goes out” is the usual household myth.

• Visible worms or tapeworm segments
• Diarrhoea or vomiting
• Weight loss despite a good appetite
• Pot-bellied kittens
• Coughing or breathing changes (lungworm — urgent)

A single faecal test can miss infection. Preventive worming is still the UK default for most cats.

Worming sits beside cat vaccination and flea control. Hunting cats have extra prey-related risks (including toxoplasmosis) that worming alone does not remove — discuss those with your vet.

Indoor-only is not parasite-free. Roundworm eggs hitchhike on shoes. Visiting dogs bring fleas. A second cat that hunts shares the sofa. The checker still usually suggests a 1–3 month adult cadence for indoor cats; hunters and homes with young children often monthly.

Kittens grow fast. Dose to today’s weight, not last month’s. Underdosing is a common reason shop treatments “fail”. Never use a dog tablet, spot-on or collar on a cat — permethrin and some other canine actives are emergencies.

Cat lungworm (Aelurostrongylus) is less discussed than dog lungworm but is a reason coughing hunters need a vet, not another supermarket roundworm tablet. If breathing changes, skip the internet and go in. Revisit the schedule after a new kitten, a house move, or when an indoor cat starts hunting — lifestyle change means cadence change. Keep a note of the last dose date in My pet health so you do not double-dose or skip a month. Bring the empty packet to the consult if you are unsure what was given.