Milbemax Allwormer, Drontal Allwormer, Panacur (fenbendazole), Interceptor Plus and NexGard Spectra cover the practical range of options Australian puppy owners choose between in 2026, and the right pick depends on your puppy's age, not brand loyalty.
- Milbemax Allwormer is the best overall worming treatment for puppies in Australia, covering all four common intestinal worms in one tablet.
- Panacur (fenbendazole) is the safest option for puppies under 12 weeks, dosed over three days.
- Interceptor Plus suits puppies old enough for combined monthly heartworm and intestinal worm prevention.
- NexGard Spectra covers fleas, ticks and heartworm but misses whipworm and tapeworm on its own.
- Drontal Allwormer is the strongest pick when flea-related tapeworm is a known risk.
Why this matters
A puppy born in 2026 can carry roundworm from its mother before it even opens its eyes, and untreated worm burdens cause poor weight gain, diarrhoea and, in bad cases, intestinal blockage. Roundworm eggs also survive in soil for years, which is why the worming schedule matters as much as the product on the shelf. Picking a wormer that doesn't match your puppy's age or weight leaves gaps a well-chosen product would have closed. If you're weighing this up alongside vaccination timing, book a puppy check with Two by Two Veterinary Hospital so the two schedules line up rather than conflict.
What makes the best worming treatment for puppies
- Spectrum of worms covered — roundworm, hookworm, whipworm and tapeworm are the four to check for, not just "allwormer" on the label.
- Minimum safe age and weight — some products start from 2 weeks and 0.5kg, others need the puppy closer to 8-12 weeks.
- Dosing format — a single tablet, a three-day paste course, or a monthly chew all demand different levels of owner follow-through.
- Whether it doubles up on heartworm or flea/tick cover — combination products save a purchase but can leave one worm species uncovered.
- Palatability and real-world compliance — a wormer only works if the puppy actually swallows the full dose.
- Availability — vet-dispensed versus pet-store shelf products vary in how easily you can match dose to weight as your puppy grows.
Best worming treatments for puppies in Australia 2026 — at a glance
| Product | Best for | Standout feature | Key limitation |
|---|---|---|---|
| Milbemax Allwormer | Overall broad-spectrum puppy worming | Covers all four common intestinal worms in one tablet | No heartworm cover at the standard intestinal dose |
| Panacur (fenbendazole) | Very young puppies pre-vaccination | Safe from around 2 weeks of age | Three consecutive days of dosing |
| Drontal Allwormer | Flea-related tapeworm exposure | Covers both common tapeworm species | No heartworm or flea/tick component |
| Interceptor Plus | Combined monthly heartworm + intestinal worming | One monthly dose replaces two products | Not for very young pups under the label minimum |
| NexGard Spectra | Flea/tick cover alongside partial worming | Covers paralysis ticks, fleas, heartworm and two worm species | Misses whipworm and tapeworm |
1. Milbemax Allwormer: best worming treatment for everyday puppy use
Milbemax Allwormer is a tablet combining milbemycin oxime and praziquantel, built to treat roundworm, hookworm, whipworm and tapeworm in a single dose. A puppy-specific tablet size exists for smaller weights, which is why this stays the default recommendation for puppies past the very early weeks.
Milbemax Allwormer pros:
- Covers all four common intestinal worm species in one tablet
- Puppy-sized dosing reduces guesswork on smaller pups
- Long track record with Australian vets
Milbemax Allwormer cons:
- Doesn't cover heartworm at the standard intestinal-worming dose
- Tablet form means you need to confirm the puppy swallows it whole, not just chews and spits
Best for: the everyday allwormer for puppies from 12 weeks through adulthood. Verdict: Buy.
2. Panacur (fenbendazole): best worming treatment for very young puppies
Panacur's active ingredient, fenbendazole, comes as a paste or granule dosed daily for three consecutive days. It's the product most vets reach for on puppies from around 2 weeks of age, often before the first vaccination appointment, because it's gentle enough for that life stage.
Panacur pros:
- Safe for very young puppies well before other products' minimum age
- Three-day course catches worms mid-lifecycle, reducing re-infestation
- Widely stocked and easy to source
Panacur cons:
- Three consecutive days of dosing is easier to miss than a single tablet
- No heartworm prevention component
- Less convenient once your puppy is old enough for once-off options
Best for: newborn-to-young puppies before their first vaccination round. Verdict: Buy for this life stage only.
3. Drontal Allwormer: best worming treatment for tapeworm risk
Drontal Allwormer combines praziquantel, pyrantel embonate and febantel in one tablet, and its tapeworm coverage extends to both common species, including the flea-related tapeworm a puppy can pick up from swallowing an infected flea while grooming.
Drontal Allwormer pros:
- Strong coverage of both common tapeworm species
- Dosed by weight with a clear puppy tablet option
- Long-standing product familiar to most Australian vets
Drontal Allwormer cons:
- Intestinal-only — no heartworm or flea/tick component
- Still needs re-dosing on the standard fortnightly-to-quarterly puppy schedule
Best for: puppies with known or suspected flea exposure and tapeworm risk. Verdict: Buy.
4. Interceptor Plus: best worming treatment for combined heartworm cover
Interceptor Plus is a monthly chewable pairing milbemycin oxime with praziquantel, giving heartworm prevention and full intestinal worm coverage — roundworm, hookworm, whipworm and tapeworm — in one dose.
Interceptor Plus pros:
- One monthly dose replaces separate heartworm and intestinal wormer purchases
- Chewable format is easier for most puppies to accept than a plain tablet
- Full coverage of four intestinal worm species plus heartworm
Interceptor Plus cons:
- Missing a monthly dose leaves a heartworm prevention gap, not just an intestinal one
- Not registered for puppies under the label's minimum weight and age, so very young pups still need Panacur or a similar product first
Best for: puppies old enough for combined monthly heartworm and intestinal worm prevention. Verdict: Buy.
5. NexGard Spectra: best worming treatment for flea and tick households
NexGard Spectra combines afoxolaner for fleas and paralysis ticks with milbemycin oxime for heartworm, roundworm and hookworm. It does not cover whipworm or tapeworm, so it's a supplement to a full worming schedule rather than a replacement for one — a distinction worth checking against the flea and tick prevention options for dogs if paralysis ticks are a concern in your area.
NexGard Spectra pros:
- Covers fleas and paralysis ticks alongside heartworm and two intestinal worm species in one chew
- Genuinely palatable — most puppies take it as a treat rather than a tablet
- Convenient for households juggling flea, tick and partial worm prevention
NexGard Spectra cons:
- Leaves whipworm and tapeworm uncovered, so it doesn't stand in for a full allwormer
- Needs a minimum age and weight before starting
Best for: puppies that need flea and tick cover alongside partial worming, not as the sole wormer. Verdict: Buy as a supplement — Hold if you're relying on it as your only worming product.
How we ranked these
Each product was weighed against the six criteria above — worm spectrum, minimum safe age, dosing format, combination coverage, palatability and availability — rather than brand recognition. Milbemax Allwormer and Drontal Allwormer both score highest on spectrum; Panacur wins on age safety; Interceptor Plus and NexGard Spectra trade full intestinal coverage for convenience and combination cover.
Book a puppy worming and vaccination plan
Get a schedule matched to your puppy's age and weight from the Balgowlah team.
Which worming treatment should you choose?
For most Northern Beaches puppy owners in 2026, Milbemax Allwormer or Drontal Allwormer is the right everyday allwormer once your puppy passes 12 weeks. Before that, Panacur covers the very early weeks safely. Once your vet confirms your puppy is ready for combined cover, Interceptor Plus consolidates heartworm and intestinal worming into one monthly dose, and NexGard Spectra earns its place alongside a full wormer if paralysis ticks are a real risk in your area — not instead of one.
FAQ
What's the best worming treatment for puppies in Australia in 2026?
Milbemax Allwormer is the best overall pick for puppies past the very early weeks, covering roundworm, hookworm, whipworm and tapeworm in one tablet. Very young puppies under 12 weeks are usually started on Panacur (fenbendazole) instead.
How often do puppies need worming?
Puppies are wormed every 2 weeks from 2 weeks of age until 12 weeks old, then monthly until 6 months, then every 3 months for life. This schedule matters as much as the product you choose, since worm eggs survive in soil for years.
Can flea and tick chews replace a full wormer?
No. Products like NexGard Spectra cover roundworm and hookworm alongside fleas, ticks and heartworm, but they don't cover whipworm or tapeworm, so a dedicated allwormer like Milbemax or Drontal still needs to be part of the schedule.
Is Panacur safe for very young puppies?
Yes, Panacur (fenbendazole) is commonly used from around 2 weeks of age, often before the puppy's first vaccination appointment. It's dosed as a paste or granule over three consecutive days rather than as a single tablet.
Does NexGard Spectra treat tapeworm?
No, NexGard Spectra covers roundworm and hookworm plus fleas, paralysis ticks and heartworm, but it does not treat whipworm or tapeworm. A separate allwormer is still needed for full intestinal coverage.
When should a puppy get its first worming treatment?
Puppies typically start worming from around 2 weeks of age, well before their first vaccination. Panacur is the product most commonly used at this stage because of its safety profile for very young pups.
Is over-the-counter worming as effective as a vet-dispensed product?
Many worming products are available both through vets and pet stores, and the active ingredients are the same either way. The advantage of vet dispensing is getting the dose matched exactly to your puppy's current weight as it grows through 2026.
One last thing
Most missed worming doses in 2026 aren't from the wrong product — they're from owners assuming a monthly flea and tick chew is doing the whole job. If your puppy is on NexGard Spectra or a similar combination product, check the label against the four worm species above; whipworm and tapeworm gaps are the most commonly overlooked.
