Topical anaesthetic and wound care for lambs.

Animal welfare is important for your livestock and for you.

The practices of mulesing, castration and tail docking lambs are considered essential to good flock management and the ongoing welfare of your sheep. These procedures reduce sexual activity, help to avoid blowfly strike and carcase damage. All of which lead to improved welfare for the animals. Producers, their customers, and consumers are more interested than ever before in animal welfare and an important aspect of that is managing and controlling pain when these types of procedures are carried out.

Find out more

Best practice is essential for our industry

The Australian Animal Welfare Standards and Guidelines for sheep was first introduced in Australian in 2016. In these guidelines there are specific references to the use of pain relief when carrying out procedures such as mulesing, cast-ration and tail docking as quoted below.

  • Standard S6.1 – A person must not tail dock sheep that are more than six months old without using appropriate pain relief and haemorrhage control for the sheep..
  • Guideline G6.14 – Tail docking and castration should be accompanied by pain relief when practical and cost-effective methods become available. Operators should seek advice on current pain minimisation strategies.
  • Guideline G7.8 – Mulesing should be accompanied by pain relief where practical and cost-effective methods are available. Operators should seek advice on current pain minimisation strategies.
“The development and use of Tri-Solfen is crucial in advancing animal welfare in Australia. It’s an important step in diminishing the concerns of producers and consumers on the adverse welfare outcomes of pain inflicted during interventions performed routinely in livestock husbandry.”

Peter A Windsor – DVSc PhD DipECSRHM Professor Emeritus,

The University of Sydney, NSW

Tri-Solfen is a formulation with a powerful combination of two local anaesthetics for rapid and longer-term pain relief.

Where does Tri-Solfen fit in?

Tri-Solfen is an easy to administer, non-pre-scription, over the counter formulation with a powerful combination of two local anaesthetics for rapid and longer-term pain relief, adrenaline to reduce bleeding and an antiseptic agent to help reduce infection risk. Tri-solfen’s gel formulation also helps to seal the wound for improved wound healing.

Tri-Solfen is the only product registered in Australia for cattle that has all of these modes of action, leaving it unrivaled for these types of surgical wounds.

Clinical studies, conducted by world leading universities have shown the positive effect Tri-Solfen has on reducing pain. Importantly, over many years, producers have seen the proof of Tri-Solfen’s positive effects on stock behaviour, right from the moment of application.

Tri-Solfen fits perfectly with your goal to provide a high standard of care for your livestock. It also fits with the industry’s objective to meet consumer expectations that livestock production must include a high level of consideration for animal welfare.

How does Tri-Solfen work?

Tri-Solfen is a viscous liquid that is easily applied to surgical wounds using the dedicated Tri-Solfen applicator. Tri-Solfen’s novel formulation contains a unique combination of 4 ingredients:

  • Lignocaine and Bupivacaine – local anaesthetics that provide pain-relief on surgical wounds.
  • Adrenaline – to reduce bleeding.
  • Cetrimide – an antiseptic agent to help reduce the risk of infection.

When applied correctly with the dedicated Tri-Solfen applicator it forms a foaming gel over the wound that helps to protect the wound from secondary infection and aids in the wound healing process.

Tri-Solfen is a unique 4-in-1 wound care product, there’s no other product like it.


Both fast and longer acting pain relief

Lignocaine – is a fast-acting anaesthetic, com-monly used in surgical procedures in humans and animals. In Tri-Solfen it provides animals with fast acting pain relief.
Bupivacaine – is a longer-acting anaesthetic that provides prolonged pain relief.
The unique formulation blocks the nerve signals from damaged tissue that are responsible for the sensation of pain. This reduces the animal’s pain response, resulting in animals becoming visibly more comfortable and importantly returning to their normal feeding and mothering up.

Learn More

Reduction in post-operative bleeding

Adrenaline – works by constricting blood vessels that have been cut during surgery. This reduces the loss of blood and limits the risk associated with increased stress and shock to the animal. Adrenaline also prolongs the anaesthetic effect on the wound due to a reduced rate of systemic absorption of the anaesthetics.

Learn More

Reduced wound healing time

Cetrimide – is an antiseptic agent. It helps reduce the risk of bacterial contamination and infection of wounds. Infection sets back the healing process and in the worst cases can lead to mortality. Reduced bleeding from adrenaline and the disinfectant qualities of cetrimide help the healing process to get started faster. It is also important to disinfect the equipment you are using for any surgical procedures..

Learn More

Reducing inflammation and long-term pain

Reducing bleeding and infection helps to minimise the inflamation process, reducing and slowing down the pain cascade process.
The unique Tri-Solfen formulation assists in the reduction of inflamation in the first 24 hours after the surgical procedure and plays a role in reducing pain levels.

Learn More

Independent university research

The University of Sydney trialed wound pain using the von Frey monofilaments to determine sensitivity to pain stimulation.
In a study of wool producers carried out by the AWI* in 2017 it is estimated that 83% of lambs which are mulesed are treated with pain relief. The study estimates that in at least 99% of cases Tri-Solfen was the product of choice for these treatments.
* AWI 2017 Merino Husbandry Practices Survey

Tri-Solfen is available in
1L, 5L and 20L packs

Are you applying Tri-Solfen correctly? Find out below…


What should I know about application?

Always read the label for correct dosing and other relevant information – including correct hygiene and the cleaning of applicators.

Tri-Solfen is applied to the wound using the speci-fically designed Tri-Solfen applicator. You must use this applicator because the spray tip and castration nozzle have been designed to ensure that Tri-Solfen is converted from liquid to a gelling foam that adheres to the wound.

The applicator comes with a short fan tip that is suitable when mulesing or tail docking.

When castrating you must use the special castration nozzle which is designed to deliver Tri-Solfen into the vaginal tunic (tunica vaginalis). If you don’t have a second applicator the castration nozzle will also generate the foaming gel for treating mulesing or tail docking areas.

To create the foam you need to operate the applicator firmly and quickly.

Withholding periods:

MEAT: Treated sheep must not be supplied or sold for slaughter for human consumption for at least 90 days following treatment.

MILK: DO NOT USE on lactating or pregnant ewes where milk may be used or processed for human consumption.

TRADE ADVICE: Export Slaughter Interval (ESI): DO NOT USE less than 90 days before slaughter for export. Before using this product confirm the current ESI on the APVMA website:

Hear from our valued customers about how they use Tri-Solfen




Download the brochure and learn more about Tri-Solfen today!

Find out more about Tri-Solfen.

    • 2 + 7 =

    Dechra Veterinary Products (Australia) Pty. Ltd.

    2 Cal Close, Somersby NSW 2250 Australia

    Phone: 1300 015 825


    1. Australia Animal Welfare Standards and Guidelines for Cattle. Endorsed Jan 2016
    2. Lomax, S. and Windsor, P.A. (2013). Topical anaesthesia mitigates the pain of castration in beef calves. J.Anim. Sci. 91:4945-4952
    3. Espinoza, C. Lomax, S. and Windsor, P (2010). The effect of topical anaesthesia on pain alleviation in calves post-dehorning.
    Proceedings of the 44th Congress of the International Society of Applied Ethology (ISAE).


    The Australian Animal Welfare Standards and Guidelines for Cattle Cattle-Standards – DOWNLOAD PDF
    The Australian Animal Welfare Standards and Guidelines for Sheep (link to a PDF doc attached) Sheep-Standards – DOWNLOAD PDF
    Cattle Council – Animal Welfare Statement 2020 (link to a PDF doc attached) 20201204 – CCA – DOWNLOAD PDF
    MLA Fact sheet | Pain mitigation in sheep and cattle (link to PDF attached) 11-11327 – DOWNLOAD PDF
    Safety Data Sheet – DOWNLOAD PDF

    ® Tri-Solfen is a registered trademark of Animal Ethics Pty Ltd