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POM-VPS Prescription Required

Cydectin 0.5% w/v Pour-on for Cattle

Active ingredient: Moxidectin

Form

Spot-on

Species

Cattle

Manufacturer

Zoetis UK Limited

VMD MA No.

42058/5131

What it's used for

Infections of cattle with parasites sensitive to moxidectin. For the treatment of infections caused by:  • • • • • •(adults) • • • Revised: July 2024 AN:...

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 Moxidectin

  1. 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. 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.

Prescription required

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

Clinical information

Cydectin 0.5% w/v Pour-on for Cattle — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Infections of cattle with parasites sensitive to moxidectin.
For the treatment of infections caused by:

•
•
•
•
•
•(adults)
•
•
•

Revised: July 2024
AN: 00742/2023

•

•
•

•
•
•
•

•
•
•
-
•

reinfection by:
•
• for 6 weeks.
Not to be used in other species as severe adverse reactions, including fatalities in dogs,
may occur.
See Section 4.11.
Cattle

Revised: July 2024
AN: 00742/2023
Very rare
(<1 animal / 10,000 animals treated,
including isolated reports):
Application site reaction
Neurological signs (such as ataxia and
trembling)
Lethargy
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or the national competent authority via the
national reporting system. See the package leaflet for respective contact details.
None.

Special precautions for use in animals
For topical application only.
To avoid secondary reactions due to the death of Hypoderma larvae in the oesophagus
or the spine, it is recommended to administer the veterinary medicinal product at the end
of the period of fly activity and before the larvae reach their resting sites: consult the
veterinarian to know the correct treatment period.

Revised: July 2024
AN: 00742/2023
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
-



medicinal product.

immediately.
Special precautions for the protection of the environment
Moxidectin fulfils the criteria for a (very) persistent, bioaccumulative and toxic (PBT)
substance; therefore, exposure of the environment to moxidectin must be limited to the
extent possible. Treatments should be administered only when necessary and should be
based on faecal egg counts or evaluation of the risk of infestation at the animal and/or
herd level.
Like other macrocyclic lactones, moxidectin has the potential to adversely affect non-
target organisms:
•
temporarily reduce the abundance of dung feeding organisms. Following treatment of
cattle with the veterinary medicinal product, levels of moxidectin that are potentially
toxic to dung fly species may be excreted over a period more than 2 weeks and may
decrease dung fly abundance during that period. It has been established in laboratory
tests that moxidectin may temporarily affect dung beetle reproduction; however, field
studies indicate no-long term effects. Nevertheless, in case of repeated treatments
with moxidectin (as with veterinary medicinal products of the same anthelmintic class)
it is advisable not to treat animals every time on the same pasture to allow dung fauna
populations to recover.
•
medicinal product should be used only according to the label instructions. Based on
the excretion profile of moxidectin when administered as the pour-on formulation,
treated animals should not have access to watercourses during the first week after
treatment.
Other precautions
Not applicable.
None known.
Keep the container in the outer carton to protect from light.
Do not store above 25°C.
If accidentally frozen, shake vigorously before use.
Excipients:
Butylated hydroxyanisole E320 0.10 mg
Tert butyl hydroquinone 0.03 mg
q.s. to 1. ml
For full list of excipients, see

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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