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The following material is intended for UK professional keepers of animals, UK veterinary surgeons and SQPs only. By continuing to browse this site, you confirm that this describes you.


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Anyone who needs or recommends parasite control products knows their job is getting tougher. We can no longer rely on old strategies and tired routines. Here at Zoetis we realise that simplistic solutions are not delivering the answers you need. It’s time to change and bring in some new thinking.

Parassist is a completely novel approach to parasite control, bringing together tools, services and a portfolio of products to help you and your customers with decision making. We’ve also put together a dedicated team of highly respected vets working in the field of herd and flock health. They will partner with you to help you find innovative solutions to complex challenges and new protocols that are fit for purpose, customised to the season and your area.

Partner with Parassist for an altogether more professional approach to parasite control.

parasite watch

Parasite Watch

We can’t assume we know what will happen to parasite populations this year, even based on last year’s trends, as the threat can change rapidly. To make accurate recommendations, real-time data is invaluable.

That’s why in 2016 Zoetis established a network of ‘Parasite Watch’ sentinel farms across the UK. We’ve extended the remit this year and regular feedback on local challenges combined with other data will be used to help you understand the risks stock face. Using the latest technology for parasite detection we’ll provide you with insight into stomach worm, Nematodirus, Fluke and fly burdens in your area.

Parasites in livestock

Visit www.parasitewatch.co.uk for more information and keep up to date by following us on Facebook and Twitter.


@sheep_farmers on Twitter sheepfarmersUK on Facebook

resistance bar chartBetter value, Better Service with our Drench Cost Calculator

Resistance to sheep wormers is on the increase in the UK and nearly every farm now has naturally occurring resistant worm populations. Reduced drench performance due to resistance leads to increased surviving worm burdens and reduced lamb performance.

To help you see the cost of resistance we have developed a Sheep Drench Cost Calculator. It uses either the latest UK resistance data or bespoke farm data and lets you create a farm specific drench plan with costs and return on investment information.

Drech Cost Calculator Smartphone App


Download for free today, search for the Zoetis Sheep Drench Cost Calculator on the Apple App store and Google Play store or use the calculator here.


App Store Google Play

Parassist strategies – food for thought

Supporting you through Autumn and Winter 2017/18


Parassist: Your parasite control partnerPlan to Improve health and productivity at housing:

After a summer at pasture your cattle should be in great condition but could potentially be hosting a significant parasite burden. Gut worms suppress appetite and any delay transitioning to the winter diet can lead to a growth rate check. Lungworms are another big concern and can predispose to respiratory disease.

And while we’re focusing on costly parasitic disease, it is worth noting that both immature and adult fluke cause production losses worth an estimated £23 million in the UK2.

Ensuring they are free from both internal and external parasites will help to set the scene for a successful housing period. Use our flow chart, developed by Parassist experts to identify your priorities for parasite control at this critical time.


Parasite Control Flow Chart

Click image to enlarge


Lice-Free Guarantee

Lice iconAnimals treated with CYDECTIN Pour-On or CYDECTIN TriclaMox Pour-On from 5 weeks pre-housing to 4 weeks post-housing will remain free of lice from housing to turn-out, so long as the management conditions are met.

If lice persist following treatment and the management conditions have been met, Zoetis will provide product free of charge to treat your cattle.


CYDECTIN® 0.5% Pour-On
for Cattle

CYDECTIN® TriclaMox® Pour-On Solution for Cattle

Fly & Lice Spot On

DysectCattle Pour-On Solution

CYDECTIN® 0.5% Pour-On for Cattle
Potent and persistent

Short meat withdrawal

Longest dosing interval of any pour-on product

Suitable for all classes of stock on the farm*

CYDECTIN® TriclaMox® Pour-On Solution for Cattle
Broad spectrum worm control and flukicide

Licensed for biting and sucking lice

Easy to use pour-on formulation

Fly and Lice Spot On™
Controls both sucking and biting lice, one application generally kills all lice

Zero day milk withdrawal

No vet assessment required

DYSECT™ Cattle Pour-On Solution
Provides easy to use cost-effective fly and lice control for cattle

A single dose controls biting and sucking lice, one application generally kills all lice

Low flat dose rate – 10ml

*with a 6 day milk withdrawal

Read Blog

Smart thinking on Sheep Scab

Sheep Scab caused by the Psoroptes ovis mite tends to be a problem in the autumn and winter due to the gathering and mixing of sheep. Costing £0.8 million in reduced animal performance nationwide and around £8.3 million overall, this is a disease that can have a big impact on farm profits3.

Key considerations:

• As Scab mites can survive for 17 days off the host, some treatments require you to move sheep to clean pasture.

• Scab mites do not feed every day, therefore treatments may take time to kill the mites – don’t switch treatments too soon.

• ML injectable products are also wormers, so make sure their use is necessary at this time of year and avoid repeat doses, to minimise the risk of resistance. 


Sheep Product Table

Click table to enlarge


CYDECTIN® 20mg/ml LA Sheep Injection

CYDECTIN® 1% Sheep Injection

CYDECTIN® 20 mg/ml LA Sheep Injection
Allows a 6-week treatment window for scab

No need to move to clean pasture

A single subcutaneous injection treats and affords 60 days residual protection

CYDECTIN® 1% Sheep Injection
For the treatment and prevention of scab

One injection will protect against scab mite infestation for at least 28 days

No need to more to clean pasture


Parassist Expert Support

Problem farm? Apparent resistance? Rapidly changing picture in your area?

Sometimes you just need to talk it through with an expert. The Zoetis Veterinary Consultant (ZVC) team is a group of eight highly qualified veterinary surgeons based around the country, with the knowledge, skills and tools to help you and your business meet the challenges your customers face now and in the future. Please speak to your local account manager about how the ZVC team can help.

Zoetis territory map 1. GRAHAM BAIRD - 07917 594727graham.baird@zoetis.com

2. COLIN PENNY - 07775 740124colin.penny@zoetis.com

3. AURELIE MORALIS - 07557 076104aurelie.moralis@zoetis.com

4. ALLY ANDERSON - 07879 890851ally.anderson@zoetis.com

5. PHIL CULLINAN - 07880 052679phil.cullinan@zoetis.com

6. BEN HURST - 07881 011864ben.hurst@zoetis.com

7. CHARLIE THOMPSON - 07787 791262charlie.thompson@zoetis.com

8. KATE INGRAM - 07917 000697kate.ingram@zoetis.com



CYDECTIN 1% should not be used in sheep that have had foot rot vaccine, CYDECTIN LA can be used in sheep that have had foot rot vaccine.

1. WAARD Project Final Report. Sept 2015
2. Bennett, R. and Ijpelaar, J. 2005. J Agric Econ 56, 135-144.
3. Nieuwhof, G.J. and Bishop, S. C. 2005. Animal Science, 81: 23-29.

CYDECTIN 0.5% W/V POUR-ON FOR CATTLE contains moxidectin. POM-VPS, CYDECTIN 1% SHEEP INJECTION contains moxidectin POM-VPS, CYDECTIN 20 MG/ML LA SOLUTION FOR INJECTION FOR SHEEP contains moxidectin. POM-VPS, CYDECTIN TRICLAMOX 5 MG/ML + 200 MG/ML POUR-ON SOLUTION FOR CATTLE, contains moxidectin and triclabendazole. POM-VPS, DYSECT CATTLE POUR-ON SOLUTION 15 G/LITRE contains alphacypermethrin. POM-VPS, FLY and LICE SPOT ON contains deltamethrin. POM-VPS.
For further information please see the product’s SPC or contact Zoetis UK Limited, Walton Oaks, Dorking Road, Tadworth, Surrey KT20 7NS. www.zoetis.co.uk. Customer Support: 0845 300 8034.Use medicines responsibly (www.noah.co.uk/responsible). AH589/17 Date of preparation: August 2017