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POM-VPS Prescription Required

Enovex 0.5% w/v Pour-on Solution for Cattle

Active ingredient: Ivermectin

Form

Spot-on

Species

Cattle

Manufacturer

Norbrook Laboratories Limited

VMD MA No.

02000/4191

What it's used for

Enovex Pour-On is indicated for the effective treatment and control of the following gastrointestinal roundworms, lungworms, eyeworms, warbles, chorioptic...

Full indications, dosage and side effects ↓
View official SPC (PDF)

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Paying less for Ivermectin

  1. 1

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    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

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Clinical information

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

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

Enovex Pour-On is indicated for the effective treatment and control of the following
gastrointestinal roundworms, lungworms, eyeworms, warbles, chorioptic and sarcoptic
mange and sucking and biting lice in beef and non-lactating dairy cattle.
Gastrointestinal roundworms (adults and fourth stage larvae):
Ostertagia ostertagi (including inhibited O ostertagi), Haemonchus placei,
Trichostrongylus axei, Trichostrongylus colubriformis, Cooperia spp,
Oesophagostomum radiatum, Strongyloides papillosus (adult), Trichuris spp (adult).
Lungworms (adult and fourth stage larvae):
Dictyocaulus viviparus.
Eyeworms (adult):
Thelazia spp

Amended pages: March 2025
AN: 02204/2022
Warbles (parasitic stages):
Hypoderma bovis, Hypoderma lineatum.
Lice:
Linognathus vituli, Haematopinus eurysternus, Solenopotes capillatus, Damalinia bovis.
Mange mites:
Chorioptes bovis, Sarcoptes scabiei var bovis.
Enovex Pour-On given at the recommended dose of 500 micrograms ivermectin per kg
bodyweight controls infections with Trichostrongylus axei and Cooperia spp acquired up
to 14 days after treatment, Ostertagia ostertagi and Oesophagostomum radiatum
acquired up to 21 days after treatment and Dictyocaulus viviparis acquired up to 28
days after treatment.
It also controls horn flies (Haematobia irritans) for up to 35 days after treatment.
Ivermectin should be administered topically at 500 micrograms per kg bodyweight (1 ml
per 10 kg bodyweight).
The formulation should be applied along the midline of the back in a narrow strip
between the withers and the tailhead.
250 ml bottle and 1 litre pack
(Squeeze dispensing bottle/twin-neck container/single neck container)
•
dispensing cup to the product bottle (squeeze-measure container) and hold the
container in an upright position.
•
volume increment.
•
1 litre, 2.5 litre and 5 litre pack
(Collapsible Back Pack)
•
cap provided.
•
cap.
•
the dose, and care of the applicator gun following use.
To ensure administration of a correct dose, body weight should be determined as
accurately as possible; accuracy of the dosing device should be checked.
Enovex Pour-on has been formulated for specific use in cattle. It should not be applied
or administered to other species, as severe reactions, including fatalities in dogs, may
occur.
Undesirable effects are not expected when the product is used at the recommended
dose rate.
Do not treat cattle when their hair or hide is wet. Do not treat cattle if rain is expected,
as rain within 2 hours of treatment may reduce efficacy. Do not apply to areas of skin
which have mange, scabs or other lesions or to areas contaminated with mud or
manure.
Care should be taken to avoid the following practices because they increase the risk of
development of resistance and could ultimately result in ineffective therapy:
•
extended period of time.
•
misadministration of the product, or lack of calibration of the dosing device (if
any).
Suspected clinical cases of resistance to anthelmintics should be further investigated
using appropriate tests (e.g. Faecal Egg Count Reduction Test). Where the results of
the test(s) strongly suggest resistance to a particular anthelmintic, an anthelmintic
belonging to another pharmacological class and having a different mode of action
should be used.
Resistance to ivermectin (an avermectin) has been reported in Cooperia onocophora in
cattle within the EU, in Teladorsagia in cattle in developed countries such as New
Zealand and Haemonochus in cattle outside the EU.

Amended pages: March 2025
AN: 02204/2022
Therefore the use of this product should be based on local (regional, farm)
epidemiological information about susceptibility of nematodes and recommendations on
how to limit further selection for resistance to anthelmintics.

Cases of intolerance with fatal outcome are reported in dogs, especially Collies, old
English Sheepdogs and related breeds or crosses, and also in turtles/tortoises.” Do not
allow these species to come in contact with this product.
Close container after use.
Special precautions for use in animals
As Ivermectin is extremely dangerous to fish and aquatic life, treated animals should not
have direct access to surface water and ditches during treatment.
To avoid secondary reactions due to the death of Hypoderma larvae in the oesophagus
or in the spine, it is recommended to administer the product at the end of warble fly
activity and before the larvae reach their resting sites.
It is recommended to treat all animals within a herd or group.
The shedding of nematode eggs can continue for some time after treatment.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals
HIGHLY FLAMMABLE, keep away from heat, sparks, open flame or other sources of
ignition.
Use only in well ventilated areas or outdoors.
Do not smoke, eat or drink while handling the product.
May be irritating to human skin and eyes and the user should be careful not to apply it
to himself or other persons.
Operators should wear rubber gloves, boots, goggles and a waterproof coat when
applying the product. Protective clothing should be washed after use.
As absorption through skin can occur, in the event of accidental skin contact, wash the
affected area immediately with soap and water.
If accidental eye exposure occurs, flush the eyes immediately with water and get
medical attention.
Wash hands after use.
Do not combine ivermectin treatment with vaccination against lungworms. If vaccinated
animals are to be treated, treatment should not be carried out within a period of 28 days
before or after vaccination.
Do not store above 30 ºC
Protect from light.
Store tightly closed in original container.
Amended pages: March 2025
AN: 02204/2022
4.8 Interaction with other medicinal products and other forms of interaction
Do not combine ivermectin treatment with vaccination against lungworms. If vaccinated
animals are to be treated, treatment should not be carried out within a period of 28 days
before or after vaccination.
4.9 Amounts to be administered and administration route
Ivermectin should be administered topically at 500 micrograms per kg bodyweight (1 ml
per 10 kg bodyweight).
The formulation should be applied along the midline of the back in a narrow strip
between the withers and the tailhead.
250 ml bottle and 1 litre pack
(Squeeze dispensing bottle/twin-neck container/single neck container)
•
dispensing cup to the product bottle (squeeze-measure container) and hold the
container in an upright position.
•
volume increment.
•
1 litre, 2.5 litre and 5 litre pack
(Collapsible Back Pack)
•
cap provided.
•
cap.
•
the dose, and care of the applicator gun following use.
To ensure administration of a correct dose, body weight should be determined as
accurately as possible; accuracy of the dosing device should be checked.
4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
No signs of toxicity are likely up to 5 mg/kg (10 times the recommended dose rate).
There is no known antidote.
4.11 Withdrawal period
Cattle (meat & offal): 28 days
Not to be used on animals producing milk for human consumption. Do not use in non-
lactating dairy cows, including pregnant heifers, within 60 days of calving.

Amended pages: March 2025
AN: 02204/2022
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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