POM-V Prescription Required

Norodine Equine Oral Paste

Active ingredients: Sulfadiazine, Trimethoprim

Form

Paste

Species

Horses

Manufacturer

Norbrook Laboratories Limited

VMD MA No.

02000/4098

What it's used for

Indicated in the treatment of bacterial infections in horses caused by sensitive microorganisms including: Escherichia coli Rhodococcus (Corynebacterium) e...

Full indications, dosage and side effects ↓

View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Sulfadiazine + Trimethoprim

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.
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.

Your prescription rights → VMD register of retailers →

Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Norodine Equine Oral Paste — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

Indicated in the treatment of bacterial infections in horses caused by sensitive
microorganisms including:
Escherichia coli
Rhodococcus (Corynebacterium) equi
Staphylococcus spp
Streptococcus spp
The product may be effective in alimentary tract infections including diarrhoea,
respiratory infections including pneumonia, pleurisy, strangles, wounds,
septicaemia and general infections.

Adjust screw gauge on dial-a-dose plunger to the bodyweight of the horse.
Remove cap from nozzle. Place nozzle in the corner of mouth. Depress
plunger depositing paste on upper surface of tongue.

Revised: February 2020
AN: 01502/2019
The daily dose is 30 mg of combined actives per kg bodyweight by oral
administration. Treatment should be continued for up to 5 days or until 2
days after symptoms have resolved.
Each syringe provides one daily dose for a 500 kg horse.
Each division on the dial-a-dose plunger provides sufficient product to treat 50
kg of bodyweight.
Replace cap after use.

None.

Revised: February 2020
AN: 01502/2019

No undesirable effects.

No special precautions.

Special precautions for use in animals
Use of the following product should be based on susceptibility testing and
take into account official and local antimicrobial policies. Not recommended in
horses with known hypersensitivity, severe hepatic dysfunction or cardiac
arrhythmias.
Do not use the same syringe to treat more than one animal unless horses are
running together or in direct contact with each other on the same premises.
Special precautions to be taken by the person administering the
veterinary medicinal product to animals
Take care to avoid skin and eye contact. Gloves and suitable eye protection
should be worn whilst handling this product. Wash hands and exposed skin
after use.
Sulphonamides may cause hypersensitivity (allergy) following injection,
inhalation, ingestion or skin contact. Hypersensitivity to sulphonamides may
lead to cross reactions with other antibiotics. Allergic reactions to these
substances may occasionally be serious.
1. Do not handle this product if you know you are sensitive to
sulphonamides.
2. If you develop symptoms following exposure such as a skin rash, you
should seek medical advice and show the doctor this warning.

Drug absorption may be greater if food is withheld for a few hours prior to
dosing.

Do not store above 25C. Protect from freezing.

Sulfadiazine 28.83 %w/w
Excipients:
Methyl Parahydroxybenzoate 0.18 %w/w
Propyl Parahydroxybenzoate 0.02 %w/w
For the full list of excipients, see section

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.