Wormers Oramec Drench For Sheep

Wormers Oramec Drench For Sheep
Product image
1 litre Bottle
Dosing Gun (No Medication Included)

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • 1 litre Bottle £17.49
  • 2.5 litre Bottle £34.08
  • 5 litre Bottle £59.45
  • Dosing Gun (No Medication Included) £31.02

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For the treatment and control of adult and immature roundworms including inhibited Ostertagia and Haemonchus contortus, Nematodirus, lungworms and nasal bots of sheep.

Below is the product datasheet. This has been provided by the manufacturer and should always be provided with the medication.


Merial Logo
Company name: Merial Animal Health Ltd
Address: PO Box 327
Sandringham House
Harlow Business Park
Essex CM19 5TG
Telephone: Companion Animals 0870 6000123
Production Animals 0800 592699
Fax: 01279 775888
Email: [email protected]
Website: www.merial.com


A pale yellow free-flowing aqueous solution containing 0.08% w/v ivermectin for oral administration. Contains benzyl alcohol as preservative.


For the treatment and control of gastro-intestinal nematodes, lungworms and nasal bots of sheep.
ORAMEC DRENCH at the recommended dose rate of 200 micrograms ivermectin per kg bodyweight provides effective control against the following parasites of sheep.
Gastro-intestinal roundworms (adult and immature): Haemonchus contortus, Ostertagia circumcincta, Trichostrongylus spp., Cooperia spp., Nematodirus spp. including N. battus, Strongyloides papillosus, Oesophagostomum spp. and adult Chabertia ovina.
Inhibited larval stages and benzimidazole-resistant strains of Haemonchus contortus and Ostertagia circumcincta are also controlled.
Lungworms (adult and immature): Dictyocaulus filaria.
Nasal bot (all larval stages): Oestrus ovis.

Dosage and administration

2.5 ml per 10 kg bodyweight (corresponding to the recommended dose rate of 200 micrograms ivermectin per kg bodyweight), administered orally with a dosing gun. The dosing gun should be calibrated sufficiently accurately to ensure precise dosing of young sheep.
To ensure administration of a correct dose, bodyweight should be determined as accurately as possible; accuracy of the dosing device should be checked.
Do not mix with other products.
Give as an oral drench.

Contra-indications, warnings, etc

For animal treatment only.
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 bodyweight, 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 macrocyclic lactones (which includes ivermectin) has been reported in Teladorsagia spp. in sheep within 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.
Do not smoke, eat or drink while handling the product.
Wash hands after use.
Avoid contact with skin and eyes.
In case of accidental spillage onto the skin or eyes, wash the affected area with clean running water immediately. Seek medical attention if irritation persists.
ORAMEC DRENCH has been formulated specifically for use in sheep. It should not be used in other species, as severe adverse reactions, including fatalities in dogs, may occur.
Withdrawal periods
Animals must not be slaughtered for human consumption during treatment.
Sheep may be slaughtered for human consumption only from 6 days after the last treatment.
Do not use in lactating animals producing milk for human consumption.
If milk is to be used for human consumption animals should not be treated within 60 days prior to the commencement of lactation.
Container disposal
EXTREMELY DANGEROUS TO FISH AND AQUATIC LIFE. Do not contaminate surface waters or ditches with the product or used container.
Any unused veterinary medicinal product or waste materials derived from such veterinary medicinal products should be disposed of in accordance with local requirements.

Pharmaceutical precautions

Do not store above 25°C. Protect from direct sunlight.
Keep out of the reach and sight of children.

Legal category


Packaging Quantities

1, 2.5 and 5 litre containers.

Further information

Some animals may cough slightly immediately after treatment. This passing response is of no consequence.
ORAMEC DRENCH can be administered to ewes at any stage of pregnancy. ORAMEC DRENCH will not affect the fertility of breeding ewes and rams and can be given to all ages of animals including young lambs.
ORAMEC DRENCH has demonstrated a wide safety margin at the recommended dose level. ORAMEC DRENCH may be used in sheep of all ages. During a study to assess toxicological effects only mild incoordination and depression were observed at 20 x the recommended dose level (4 mg ivermectin per kg bodyweight administered by stomach tube). At 40 x the recommended dose level (8 mg ivermectin per kg bodyweight administered by stomach tube) acute symptoms (ataxia, staggering gait, incoordination and depression) were observed. Within 24 hours nearly all animals appeared normal and within 3 days all animals appeared clinically normal.
No antidote has been identified. However, symptomatic treatment may be beneficial.
Ivermectin is a member of the macrocyclic lactone class of endectocides.

Marketing authorisation number

Vm 08327/4191.

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

Reviews (17)

Summary of Reviews for Wormers Oramec Drench For Sheep

Overall 4
Value For Money
Ease Of Use
Absence Of Side Effects
17 out of 17 (100%) customers would recommend this product.
5 stars (10 reviews)
4 stars (6 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (1 reviews)

Only verified purchasers of this product can leave a review.

55 Oramec drench
Verified Purchase

By on 8 November 2021

Top quality

Customer recommends this product

55 easy, no hassle & effective
Verified Purchase

By on 24 June 2021

i bought this as i was concerned our worming regime might not be working - seems to have worked a treat

Customer recommends this product

15 Short date - don't bother if only got a few sheep
Verified Purchase

By on 31 May 2021

Waste of money! I worm my ewes once a year, just before they lamb in December, (I have 3) then worm the lambs at set times. I bought in a small flock, 4 ewes 8 lambs that I don't know the history. This was purchased for the lambs as I'd already done them all previously with a fluke drench, (they were being shifted onto wet ground). The expiry date is October! For 8 lambs it's expensive as it's out of date before I can use it again for my ewes! Neighbour let me have some of there's instead. Since returns aren't an option, it will remain sealed until December and hopefully it will have some kick in it when used then!

Dates should be listed. Viovet said I could have asked about the date but they AREN'T answering emails fast at the moment! Another product I was after, 5 days before I got a response, 23 minutes on hold in the end!

Customer recommends this product

45 Oramec
Verified Purchase

By on 8 May 2021

Great value for money

Customer recommends this product

55 Perfect order fast and well wrapped
Verified Purchase

By on 3 October 2020

It’s a well known effective product and

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Wormers Oramec Drench For Sheep, including answers from our team.

17 December 2021 at 8:59pm


Hi, can this be used for tapeworm in sheep??

  • VioVet Staff

Oramec contains ivermectin and is used for the treatment and control of adult and immature roundworms including
inhibited Ostertagia and Haemonchus contortus, Nematodirus, lungworms
and nasal bots of sheep. It does not cover tapeworm. It is advised to contact your local farm vet for a good worming plan, they can recommend which products would be best suited for your specific flock as this varies from farm to farm.

29 September 2021 at 1:51pm

Dosing Gun


  • VioVet customer since 2018
  • From: Kent, United Kingdom

Can you tell me please if a dosing gun is included? The photos of the product show the gun but can’t work out if it actually comes with it.

  • VioVet Staff

The dosing gun is not included with bottles of this medication, however it can be purchased separately from our site. You should be able to find it in the product page 'Size/Type' drop down menu.

2 June 2021 at 11:25am

Administration gun

Nadine Exner

Packaging shows the gun for administering. I want to ensure the wormer comes with the gun

  • VioVet Staff

The gun for this product will need to be purchased separately from the medication. You can find this on the product page itself, just choose the option 'dosing gun' when ordering.

8 May 2021 at 9:20am

Is this a fenbendazaole producT?

Is this a fenbendazaole produc

Is this a fenbendazaole producT? Like panacure but diff trade name?

  • VioVet Staff

This product does not contain flubendazole, it contains ivermectin as the active ingredient. If you would like further advice on which worming product to choose please contact us on [email protected].

25 September 2019 at 2:51pm

Worms in llamas


Is this product safe for my two llamas

  • VioVet Staff


Thank you for your question.

This is only licensed for the use in sheep so we are unable to advise if this would be suitable or not. There aren't currently any products licensed for use in llamas (although many sheep/cattle wormers can be used under veterinary supervision), so the best thing to do would be to speak to your vet, who will need to prescribe a product and a dosage for your llamas. If they decide Oramec is suitable, you can ask them for the prescription and you can send this to us if our price will still save you money over your vet's price + the prescription cost.

I hope this helps!


7 September 2017 at 2:17pm

How long is cover

Joe Williams

How long does oramec cover sheep on the different worm groups?

  • VioVet Staff

Like the majority of parasiticides, ORAMEC does not have a long duration of action. The product is effective against the lifecycle stages listed below at the time of administration.

Gastro-intestinal roundworms (adult and immature):

Haemonchus contortus

Ostertagia circumcincta

Trichostrongylus spp.

Cooperia spp.

Nematodirus spp. including N. battus

Strongyloides papillosus

Oesophagostomum spp.

Chabertia ovina (Adults)

Inhibited larval stages, benzimidazole resistant strains of H. contortus and O. circumcincta are also controlled.

Lungworms (adult and immature):

Dictyocaulus filaria

Nasal bot (all larval stages):

Oestrus ovis

5 February 2017 at 8:25pm


Charley Roff

  • VioVet customer since 2016
  • From: Kent, United Kingdom

I been told you can use this for goats to but is the dose the same as a sheep
Many thanks Charley

  • VioVet Staff

Oramec is often used for goats but it is licensed only for sheep so you would need a prescription to buy it for use in goats. Your own vet will be able to advise you on an appropriate dose rate for your goats. However for sheep the dose rate is 200 micrograms per kg where the recommended dose rate for goats is double at 400 micrograms per kg bodyweight which works out at 5mls per 10kg bodyweight.

22 July 2015 at 7:53pm

How long!!


What is the expiry date for a 1 litre bottle of wormer?

  • VioVet Staff

This generally varies between 6 to 24 months but is most often towards the middle of that range. We do not have any in stock today so I cannot check now, but we can get it in every day. If you need a particularly long date you can stipulate that when you place the order and we will check this for you before we send it. Best to make the order by telephone in this case.

Delivery Information