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Wormers Oramec Drench For Sheep

Wormers Oramec Drench For Sheep
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 £16.44
  • 2.5 litre Bottle £34.08
  • 5 litre Bottle £59.45
  • Dosing Gun (No Medication Included) £20.99

Selection of 4 products from

£16.44 to £59.45


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]


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: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as non-ambient items and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (11)

Q & A

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

25 September 2019 at 2:51pm

Worms in llamas


Is this product safe for my two llamas

  • Brand Manager


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?

  • Veterinary Advisor

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

  • Veterinary Advisor

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?

  • Non-Executive Director

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.