Opticlox Eye Ointment 16.7% w/w
Active ingredient: Cloxacillin
Form
Cream
Species
Manufacturer
Norbrook Laboratories Limited
VMD MA No.
02000/4075
What it's used for
Opticlox Eye Ointment is indicated for the treatment of eye infections in cattle, sheep, horses, dogs and cats caused by spp.
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 Cloxacillin
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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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Prescription required
Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.
Opticlox Eye Ointment 16.7% w/w — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.
sheep, horses, dogs and cats caused by
spp.
Evert the lower eyelid and instill a steady flow of ointment into the lower
conjunctival sac. Normally a single application only is required, but treatment
may be repeated after 48 - 72 hours if necessary.
Dosage guide:
Cattle and Horses: approximately 5 - 10 cm of ointment per eye.
Sheep: approximately 5 cm of ointment per eye.
Dogs and Cats: approximately 2 cm of ointment per eye.
For animals with only a single infected eye it is recommended, to prevent
cross infection, that both eyes be treated, treating the uninfected eye first to
avoid transferring the infection. Each syringe to be used once only.
Revised 19 November 2008
AN: 00170/2008
Special precautions for use in animals
For external use only.
Wherever possible, Opticlox Eye Ointment should only be used based on
susceptibility testing.
Special precautions to be taken by the person administering the
veterinary medicinal product to animals
Operator warning - penicillin/cephalosporin sensitivity:
Penicillins and cephalosporins may cause hypersensitivity (allergy) following,
inhalation, ingestion or skin contact. Hypersensitivity to penicillins may lead to
cross reactions to cephalosporins and vice versa.
Allergic reactions to these substances may occasionally be serious.
1. Do not handle this product if you know you are sensitised, or if you
have been advised not to work with such preparations.
2. Handle this product with great care to avoid exposure, taking all
recommended precautions.
3. If you develop symptoms following exposure such as skin rash you
should seek medical advice and show the doctor this warning. Swelling of the
face, lips or eyes are more serious symptoms and require urgent medical
attention.
Wash hands after use.
Revised 19 November 2008
AN: 00170/2008
Each syringe should be used on one occasion only.
Unused ointment should be discarded after treatment.
Cattle, Sheep and Horses (Meat): Zero days.
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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Related Conditions
Other Products Containing Cloxacillin
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Bovaclox DC Intramammary Suspension
POM-VNorbrook Laboratories Limited
Bovaclox DC Xtra Intramammary Suspension
POM-VNorbrook Laboratories Limited
Lactaclox Intramammary Infusion
POM-VNorbrook Laboratories Limited
Noroclox DC 500 mg Intramammary Suspension
POM-VNorbrook Laboratories Limited
Orbenin Dry Cow 500 mg Intramammary Suspension
POM-VZoetis Belgium S.A.
Orbenin Dry Cow 500 mg Intramammary Suspension
POM-VZoetis UK Limited
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