Norbrook Deltamethrin 10 mg/ml Spot-on Solution for Cattle and Sheep

To avoid resistance, the veterinary medicinal product should only be used if the susceptibility
of the local fly population to the active substance is assured.
Cases of resistance to deltamethrin have been reported in stinging and nuisance flies in
cattle and lice in sheep.
The veterinary medicinal product will reduce the number of flies resting directly on the animal
but it is not expected to eliminate all flies and parasites on a farm. The strategic use of the
veterinary medicinal product should, therefore, be based on local and regional
epidemiological information about susceptibility of parasites, and used in association with
other pest management methods.
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:
too frequent and repeated use of ectoparasiticides from the same class over an extended
period of time; underdosing which may be due to underestimation of bodyweight,
misadministration of the product, or lack of calibration of the dosing device.
If clinical signs do not resolve following treatment, the diagnosis should be revised.

Special precautions for safe use in the target species:
The veterinary medicinal product is for external use only.
Do not apply on or near the animal’s eyes and mucous membranes.
Care should be taken to prevent licking of the product. Avoid use of the product during
extremely hot weather and ensure animals have adequate access to water.
The product should only be administered onto undamaged skin as toxicity is possible due to
absorption from major skin lesions. However, signs of local irritation may occur after
treatment as skin may be already affected by infestation.
Special precautions to be taken by the person administering the veterinary medicinal product
to animals
People with known hypersensitivity to Deltamethrin or any of the excipients should avoid
contact with the veterinary medicinal product.
Personal protective equipment consisting of waterproof apron and boots and impervious
gloves should be worn when handling the veterinary medicinal product.
Remove heavily contaminated clothing immediately and wash before use.
Wash splashes from skin immediately with soap and plenty of water.
Wash hands and exposed skin after handling this product and before meals.
In case of contact with eyes, rinse immediately with plenty of clean, running water and seek
medical advice.
AN: 02523/2024 and 02526/2024
In case of accidental ingestion, wash out mouth immediately with plenty of water and seek
medical advice and show the package leaflet or the label to the physician.
Do not smoke, drink or eat while handling the product.
This product contains deltamethrin which may produce tingling, itchiness and blotchy
redness on exposed skin. If you feel unwell after working with this product, consult your
doctor and show this label.
To the physician:
Advice on clinical management is available from the National Poisons Information Service.
Special precautions for the protection of the environment:
Deltamethrin is very toxic to dung fauna, aquatic organisms and honey bees, is persistent in
soils and may accumulate in sediments.
The risk to aquatic ecosystems and dung fauna can be reduced by avoiding too frequent and
repeated use of deltamethrin (and other synthetic pyrethroids) in cattle and sheep, e.g. by
using only a single treatment per year on the same pasture.
The risk to aquatic ecosystems will be further reduced by keeping treated cattle away from
water bodies for four weeks after treatment.