Johnson’s One Dose Wormer for Puppies & Small Dogs 100mg Film-coated Tablets
Active ingredient: Nitroscanate
Form
Tablet
Species
Manufacturer
Chanelle Pharmaceuticals Manufacturing Ltd
VMD MA No.
08749/3073
What it's used for
For the treatment the following nematodes (roundworms) and cestodes (tapeworms): Nematodes: caninum Cestodes:
Full indications, dosage and side effects ↓The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.
Paying less for Nitroscanate
-
1
Ask your vet for a written prescription
They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
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2
Fill it at a registered online retailer
The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.
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Johnson’s One Dose Wormer for Puppies & Small Dogs 100mg Film-coated Tablets — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.
Nematodes:
caninum
Cestodes:
100mg tablet per 2kg (4.4lb) bodyweight, equivalent to 50mg nitroscanate/kg
bodyweight.
For dogs weighing more than 8kg (17.5lb) use Johnson’s One Dose Wormer for Dogs
500mg Film-Coated Tablets.
Directions for use:
overnight fasting with approximately one-fifth of the daily food ration. To reduce the risk
of vomiting, it is recommended that the remaining food ration is withheld for at least 8
hours afterwards.
When administered as recommended is unlikely to cause vomiting.
Do not repeat treatment if vomiting occurs shortly after dosing.
Do not administer if your pet is sick or recovering from an illness.
Do not use in known cases of hypersensitivity to the active substance or to any of the
excipients. If a hypersensitivity reaction occurs treatment should be discontinued.
Revised: October 2025
AN: 01766/2025
diarrhoea); systemic sign (lethargy) and neurological sign (ataxia) have been observed
very rarely.
The frequency of adverse reactions is defined using the following convention:
- very common (more than 1 in 10 animals treated displaying adverse reaction(s))
- common (more than 1 but less than 10 animals in 100 animals treated)
- uncommon (more than 1 but less than 10 animals in 1,000 animals treated)
- rare (more than 1 but less than 10 animals in 10,000 animals treated)
- very rare (less than 1 animal in 10,000 animals treated, including isolated reports).
the most common tapeworm of the dog (
has a very short pre-patent period it is important to pay attention to flea control to reduce
the incidence of tapeworm in your pet.
It is important to worm young puppies very regularly for roundworm with a suitable
product. Johnson’s One Dose Wormer for Puppies & Small Dogs 100mg can be used
at 12, 16 and 24 weeks of age. An alternative worming product must be used in younger
puppies.
Nursing bitches should be treated at 2, 4, 6, 8 and 12 weeks after whelping.
If symptoms of disease persist or appear, consult your veterinary surgeon.
Special precautions for use in animals
The product should not be administered to puppies less than 12 weeks old, owing to the
need to restrict food intake at the time of administration. See also section 4.9.
Special precautions to be taken by the person administering the veterinary
medicinal product to animals
This product can be an irritant to the skin and eyes. Tablets are film-coated and
should not be broken or divided
Revised: October 2025
AN: 01766/2025
5.
This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.
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Other Products Containing Nitroscanate
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Armitage Worm Away 100mg Film-coated Tablets for Dogs
NFA-VPSChanelle Pharmaceuticals Manufacturing Ltd
Armitage Worm Away 500mg Film-coated Tablets for Dogs
NFA-VPSChanelle Pharmaceuticals Manufacturing Ltd
Beaphar Easy One Dose Wormer for Medium and Large Dogs, 500 mg Film-Coated Tablets
AVM-GSLSinclair Animal and Household Care Ltd
Beaphar Easy One Dose Wormer for Small Dogs, 100 mg Film-Coated Tablets
AVM-GSLSinclair Animal and Household Care Ltd
Beaphar One Dose Dog Wormer 500 mg Nitroscanate Film-coated Tablets
AVM-GSLChanelle Pharmaceuticals Manufacturing Ltd
Beaphar One Dose Dog Wormer 500 mg Nitroscanate Film-coated Tablets
AVM-GSLChanelle Pharmaceuticals Manufacturing Ltd
Alternative options to consider
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Drontal, Milbemax, Panacur and generic wormers for dogs. Dispensed by a UK registered pharmacy.
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VetBox Flea & Worm Protection for Dogs
Vet-founded monthly parasite subscription. Flea, tick and worm protection delivered to your door. Founded by Dr Will Woodley, protecting 30,000+ pets.
We may earn a small commission if you purchase through these links, at no extra cost to you.
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