Norbrook Noromectin 0.08% Drench Wormer

Norbrook Noromectin 0.08% Drench Wormer
2 x 5 litre Bottles

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  • 2 x 5 litre Bottles £194.34
  • 1 litre Bottle £29.66
  • 2.5 litre Bottle £63.56
  • 5 litre Bottle £108.08

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Morbrook Noromectin 0.08% Drench is for the treatment and control of gastro-intestinal nematodes and lungworms and nasal bots of sheep. POM-VPS.

Noromectin 0.08% w/v Drench Oral Solution


A free-flowing aqueous solution containing:

Ivermectin for oral administration 0.08% w/v


For the treatment and control of gastrointestinal nematodes and lungworms and nasal bots of sheep.

Noromectin Drench at the recommended dosage level of 200 μg ivermectin per kg bodyweight effectively controls the following parasites of sheep:


Gastrointestinal worms (adult and immature): Haemonchus contortus, Ostertagia circumcincta, Trichostrongylus spp, Cooperia spp, Nematodirus spp includingN. battus, Strongyloides papillosus, Oesophagostomum spp, and adult Chabertia ovina. Inhibited larval stages and benzimidazole resistant strains of H. contortus and Ostertagia circumcincta also controlled.

Lungworms (adult and immature): Dictyocaulus filaria.

Nasal bot (all larval stages): Oestrus ovis.

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 anthelmintics from the same class, over an extended period of time
Underdosing, which may be due to underestimation of body weight, 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 Teladorsagia in sheep and goats within the EU and it is common in Haemonchus in sheep outside the EU. 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.

Dosage & Administration

Dosage: 2.5ml per 10kg bodyweight (based on a recommended dosage level of 200 μg ivermectin per kg bodyweight).

Administration: Give as an oral drench. Estimate bodyweight accurately prior to dosing. It is recommended that a suitably calibrated dosing gun is used to allow accurate dosing especially in young animals.

Noromectin Drench can be administered to ewes at any stage of pregnancy or lactation provided that the milk is not used for human consumption. Noromectin Drench will not affect the fertility of breeding ewes and rams and can be given to all ages of animals including young lambs.

Do not mix with other products.

Withdrawal Period

Sheep may not be slaughtered for human consumption until 14 days after the last treatment. Do not use in sheep producing milk for human consumption.

Contraindictions, Warnings etc

Do not smoke, drink or eat while handling the product. Wash hands after use.

Avoid contact with skin and eyes. In case of accidental eye or skin contact, wash the affected area with clean running water immediately. Seek medical attention if irritation persists.

Some animals may cough slightly immediately after treatment. This is a temporary occurrence and of no clinical consequence.

Noromectin Drench has been formulated specifically for use in sheep. It should not be used in other species, as adverse reactions, including fatalities in dogs, may occur.

Pharmaceutical Precautions

Do not contaminate ponds, surface waters or ditches with product or empty container. Dispose of any unused product and empty containers in accordance with guidance from your local waste regulation authority.

Do not store above 25°C. Protect from light.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:00am - 5:45pm
  • Sat: 9:00am - 1:00pm
  • Email: [email protected]

All prices include VAT where applicable.

Medication Datasheets


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Q & A

Below are some recent questions we've received regarding Norbrook Noromectin 0.08% Drench Wormer, including answers from our team.

22 June 2016 at 10:12am

Goat wormer

Diana Stewart

  • VioVet customer since 2012
  • From: County Down, United Kingdom

Is this suitable for goats?

  • VioVet Staff

This wormer is often used in goats. However it is actually licensed for sheep, so we only sell it for use in sheep normally. If we receive a prescription from the goats' vet, then we can sell it for use in goats.

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