Skip to content
POM-VPS Prescription Required

Levacide Pour-on Solution 20% w/v

Active ingredient: Levamisole Hydrochloride

Form

Spot-on

Species

Cattle

Manufacturer

Norbrook Laboratories Limited

VMD MA No.

02000/4138

What it's used for

Levamisole is a broad-spectrum anthelmintic indicated for use in cattle in the treatment and control of nematode infections such as parasitic gastro-enteri...

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 Levamisole Hydrochloride

  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

Levacide Pour-on Solution 20% w/v — SPC Details

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

Levamisole is a broad-spectrum anthelmintic indicated for use in cattle in the
treatment and control of nematode infections such as parasitic gastro-enteritis
and lungworm disease caused by the following mature and developing
immature gastro-intestinal and pulmonary nematodes:
Lungworms - Dictyocaulus viviparus
Gastrointestinal worms - spp, spp,
ostertagi (except inhibited larvae), spp,
Nematodirus spp, Bunostomum spp, Oesophagostomum spp.

Revised: 17
th
December 2008
AN: 00809/2008
The pour-on is indicated for external transcutaneous administration to cattle.
The recommended dose rate is 10 mg levamisole/kg bodyweight equivalent to
2.5 ml per 50 kg bodyweight.
Bodyweight Dose
Up to 50 kg (1 cwt) 2.5 ml
51-100 kg (1-2 cwt) 5 ml
101-150 kg (2-3 cwt) 7.5 ml
151-200 kg (3-4 cwt) 10 ml
201-250 kg (4-5 cwt) 12.5 ml
251-300 kg (5-6 cwt) 15 ml
301-350 kg (6-7 cwt) 17.5 ml
Above 350 kg give a further 2.5 ml for each additional 50 kg bodyweight.
Dose all young cattle in early summer and if possible move to clean pasture.
Cattle should be dosed on first signs of lungworm infection.
For external administration only. Pour on from the calibrated dispenser or
using a standard dosing gun. Apply along the flattest part of the backline at
the rate of 10 mg levamisole/kg bodyweight, equivalent to 2.5 ml per 50 kg
bodyweight.
For 500 ml twin neck dispenser, simply squeeze the bottle to allow the
appropriate amount of liquid into the calibrated dispenser. Apply along the
backline and let it "pool" on the flattest part of the animal's back. The 2.5 L
“Jerry-can” should be used in conjunction with a standard dosing gun.
The 2.5 litre “Jerry-can” should be used in conjunction with a standard dosing
gun. Use of other equipment is not recommended as the product may have a
detrimental effect on certain components.
To ensure administration of a correct dose, bodyweight should be determined
as accurately as possible; accuracy of the dosing device should be checked.

Revised: 17
th
December 2008
AN: 00809/2008
None
The product is safe for use in cattle at the recommended dosage. In cases of
overdosage (which only occurs at over five times the recommended dose rate),
hyperaesthesia, tremor and occasionally diarrhoea may occur.
At the recommended dose rates animals should not show any adverse side
effects. However, local skin irritation at the application site may be observed
occasionally, characterised by subcutaneous oedema. Severe cases may show
signs of epidermal flaking for which symptomatic treatment is recommended.
In cases of lungworm infection coughing may persist for some time after
treatment due to tissue damage.
For external use only.
Do not treat animals when wet, and where possible, for one hour post
treatment, prevent treated animals from being exposed to rain.

i) Special precautions for use in animals
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:
•
an 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 levamisole has been reported in , and
Trichostrongylus species in sheep in a number of countries, including the EU.
There are reports of resistance in in sheep outside the EU.
Resistance to levamisole has been reported in species in cattle in
developed countries such as New Zealand. 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.
Cattle must not be treated within a period of 14 days before or after treatment
with organophosphorus compounds.
Do not exceed the stated dose.
The bodyweight of animals should be assessed as accurately as possible before
calculating the dose.

Revised: 17
th
December 2008
AN: 00809/2008
As with other anthelmintics, veterinary advice should be sought:
(a) on appropriate dosing programmes and stock management to achieve
adequate parasite control and to reduce the likelihood of anthelmintic
resistance developing;
(b) if the product does not achieve the desired effect, as other diseases,
nutritional disturbances or anthelmintic resistance may be present.
ii) Special precautions to be taken by the person administering the
veterinary medicinal product to animals
Highly flammable. Keep away from heat and sources of ignition.
Do not eat, drink or smoke when using this product. Wear rubber gloves,
boots and waterproof bib-apron when applying this product. Avoid contact
with skin and eyes. In case of accidental skin or eye contact, wash/irrigate
splashes from skin and eyes immediately with clean water. If irritation
persists seek medical advice. Remove any contaminated clothing
immediately. Wash hands and exposed skin after handling this product and
before meals. Use in a well ventilated area.
Levamisole can cause idiosyncratic reactions and serious blood disorders in a
very small number of people. If symptoms such as dizziness, nausea,
vomiting or abdominal discomfort are experienced when using this product or
sore mouth/throat or fever occur shortly afterwards, then medical advice
should be sought immediately.
Cattle must not be treated within a period of 14 days before or after treatment
with organophosphorus compounds.
Do not store above 25ºC. Do not freeze.
Protect from light.
Store tightly closed in original container.
Following withdrawal of the first dose, use the product within 6 months.
Animals must not be slaughtered for human consumption during treatment.
Cattle (meat): 28 days.
Do not use in animals producing milk for human consumption.
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.

Medication costs adding up?

Pet insurance can cover prescription medications. Find the right policy for your pet.

Compare insurance

Find cheaper vets near you

Compare vet consultation prices in your area. Save on procedures and get a prescription to buy medications online.