Hover to zoom

Johnson S One Dose Easy Wormer

A single-dose wormer for small dogs and puppies, killing roundworms, tapeworms and hookworm

Size

From £5.99

· tracked · UK mainland estimate · 14-day promise

UK delivery £2.99 · free over £39

Secure checkout by Stripe · Card, Apple Pay & Klarna

On choosing the right size

This page covers more than one pack size, and weighing your dog before you buy is the only reliable way to pick correctly — a wormer sized for a small dog under-doses a bigger one, and Johnson's don't publish what the larger sizes in this range cover on this listing, so check the pack itself.

Secure checkout

Tracked delivery

Easy returns

Why we chose it

A single dose that covers three worm types is straightforward — no repeat doses to remember, no separate products for roundworm and tapeworm. Getting the weight band right matters more with a wormer than with most products, so we've kept the 8kg limit front and centre rather than glossing over it.

— Matt, founder

Specifications

Brand: Johnson's

Full description

A dog that's just been wormed doesn't look any different afterwards, which is part of why worming is easy to let slide — there's no visible before-and-after to remind you it's working, only a date on a calendar you may or may not have kept.

This is a single-dose treatment built around nitroscanate, which Johnson's say kills roundworms, tapeworms and hookworm in one go rather than needing a repeat course. The pack we hold facts for here is sized for small breeds of dogs and puppies up to 8kg, supplied as 4 x 100mg tablets. Johnson's sell this wormer in more than one size for different dog weights, so check the pack in front of you matches your dog's actual weight before dosing.

4 x 100mg tablets (this size)
Single-dose treatment
Contains nitroscanate
Kills roundworms, tapeworms and hookworm
This size: small breeds of dogs and puppies up to 8kg
Sold in more than one size for different dog weights

On choosing the right size. This page covers more than one pack size, and weighing your dog before you buy is the only reliable way to pick correctly — a wormer sized for a small dog under-doses a bigger one, and Johnson's don't publish what the larger sizes in this range cover on this listing, so check the pack itself.

Who it's for: owners of a small dog or puppy up to 8kg wanting a single-dose wormer rather than a course spread over several days.

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

14 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions

What worms does it treat?

Johnson's say it kills roundworms, tapeworms and hookworm.

What weight of dog is this size for?

Small breeds of dogs and puppies up to 8kg, in this 4 x 100mg tablet pack.

Is it a single dose?

Yes, Johnson's describe it as a single-dose treatment.

My dog is bigger than 8kg — can I use this?

This pack is sized for dogs up to 8kg. Johnson's sell this wormer in other sizes for different weights, so check you have the correct pack for your dog before dosing.

Which options can I choose from?

Size1, Size2, Size3, Size4. Pick one above before adding to your basket.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

What if I need to return my order?

You have 14 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Why buy from Giddy Pets?

Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
Easy returns14 days to change your mind, no interrogation. If it’s not right, we’ll make it right.