Most adult dogs are typically wormed every 1–3 months, but puppies need much more frequent treatments and your vet may adjust this based on risk.

Adult dogs

• Low‑risk adult dogs (mainly indoors, don’t scavenge or hunt, no young children or immunocompromised people in the home) are often dewormed about every 3 months.

• Moderate to high‑risk dogs (spend lots of time outdoors, mix with many dogs, hunt or scavenge, live with young children or vulnerable people) are commonly put on a monthly worming schedule.

• Many vets recommend at least four treatments per year as a baseline, with more frequent doses if risk is higher.

Puppies

• Puppies are usually started very early because they can be born with worms or pick them up from their mother.

• Typical guidance: every 2–3 weeks from about 2–3 weeks of age up to roughly 12–16 weeks, then monthly until around 6 months old, then move onto an adult schedule (every 1–3 months depending on risk).

Other factors and next steps

• Some monthly products for fleas/heartworm also deworm for common intestinal worms, so separate “worming tablets” might not be needed if your dog is on one of these—your vet can confirm.

• The exact product and dose depend on your dog’s weight, age, and local parasites, so the safest approach is to ask your vet to set a personalised schedule and check a stool sample if there are any tummy issues, weight loss, or visible worms.