The 6 best cattle drenches for Australian farmers at Specialist Sales

Effective parasite control is one of the most critical components of any cattle operation. Worms, ticks, lice, liver fluke, and buffalo fly all take a significant toll on animal health, affecting weight gain, feed conversion, milk production, and reproductive performance. 

No single drench suits every situation — the right product will depend on your herd’s parasite pressure, your region, whether you need to observe withholding periods, and your broader resistance management strategy.

With that in mind, we’ve collected six of the best cattle drenches in Australia, each selected to represent a different formulation type and use case. Keep reading for Specialist Sales’ top tips for choosing a cattle drench, complete with tried-and-tested recommendations.

How to choose the right cattle drench

In cattle management, choosing the right cattle drench will depend on your herd’s specific needs, the season, and the parasites present in your area. Consider these things before you buy to ensure you don’t waste time, money, and labour on the wrong formulation. 

1. Which parasites are you dealing with? 

Understanding your parasite presence is the best starting point when selecting a cattle drench. Every region in Australia has a mix of internal and external parasites that can detrimentally affect cattle health. Certain internal parasites, such as gastrointestinal nematodes, liver flukes, stomach flukes, and lungworms, require different active ingredients to external parasites like ticks, lice, and buffalo fly. 

Start by conducting a faecal egg count and taking this to your vet to help you identify which parasites you’re treating. You can do your own research, too — narrow it down by region, then use common identifiers like size, shape, and colour to get closer to an answer. 

2. Which class of cattle are you treating? 

Age and class matter significantly when selecting a drench. Calves and young cattle are typically more susceptible to parasites, which means they may require an increase in treatment frequency. Drenching calves under eight weeks can be particularly dangerous, as they will still be receiving some immunity via their mother’s milk.

Weaners and yearlings that have yet to build natural immunity will benefit most from a high-efficacy dual or multi-active product. Lactating dairy cows require a drench with a nil milk withholding period, a constraint that unfortunately rules out many excellent options. Pregnant beef cows and breeding bulls each have their own label considerations that must be checked prior to treatment. 

3. Which formulation suits your operation? 

There are three main types of cattle drench, each of which has its own strengths and considerations. Let’s break this down: 

• Pour-on drenches are by far the most popular choice amongst producers. They’re convenient, mostly rainfast, and can be applied quickly across large mobs, which reduces handling stress on both cattle and handlers. They provide broad-spectrum control of internal and external parasites (depending on the chosen product), and are a practical first choice for operations where treatment efficiency matters.

• Injectable drenches deliver precise, measurable dosing that is completely unaffected by rain, dust, or sun exposure, which ensures full absorption into the animal’s bloodstream, compared to pour-ons that may only be rainfast after a few hours. Many injectable formulations also offer longer residual protection periods. These formulations are particularly useful when cattle are under stress or in high-rainfall environments where pour-on efficacy is easily weather-compromised.
• Oral drenches rapidly deliver active ingredients into the bloodstream via the digestive system. Generally the most cost-effective option, they’re well-suited to targeted treatment of internal parasites in smaller herds. Oral combination drenches — particularly triple-active formulations — are one of the most effective tools for combating established drench resistance.

4. Do you need to consider withholding periods? 

Any cattle designed for slaughter or tasked with producing milk for human consumption must be treated with cattle drenches with appropriate withholding periods. These are legal requirements, not guidelines, and must be observed to a tee.

Withholding periods vary significantly between products, formulations, and active ingredients, so it’s always best to check the product label before purchasing. Some injectables carry withholding periods of 60 days or more. 

5. Where does resistance management fit in?

Drench resistance is a growing challenge across Australia, and the choices you make now will affect the long-term efficacy of your parasite control program. Rotating between drench classes (active ingredients), not just product brands, is critical. Using the same active ingredient repeatedly, even under different trade names, places consistent selection pressure on parasite populations and accelerates resistance.

The correct dosage is also essential to avoid resistance. Over- or under-drenching cattle can lead to resistance, so following the manufacturer’s directions for use is essential.

Combination drenches that target two or more drench classes simultaneously are becoming the preferred approach in Australia, particularly for weaners, quarantine drenching of incoming cattle, and operations where resistance has already been identified. Avoiding resistance isn’t about drenching more — it’s about drenching smarter.

Read our comprehensive guide to cattle drenching to learn more. 

The best cattle drenches available at Specialist Sales

Now that you’ve got an idea of the criteria affecting your choice of drench, let’s dive into six of our most popular products.

1. Best for large herds needing broad-spectrum coverage: Cydectin Pour-On

For beef and dairy producers running large mobs, Cydectin Pour-On is one of Australia’s most trusted choices. It contains moxidectin (5g/L), a second-generation macrocyclic lactone (ML) that offers a meaningful step up in efficacy compared to first-generation MLs like ivermectin. 

Applied along the animal’s backline, Cydectin controls a wide range of internal and external parasites, including gastrointestinal roundworms, lungworms, lice, cattle ticks, mites, and buffalo fly, with persistent activity for up to 42 days. It’s rainfast, carries nil milk and meat withholding periods, and has no known impact on dung beetle populations.

For producers managing seasonal tick pressure, Cydectin can be used in 21-day strategic tick programs to disrupt the tick lifecycle. It’s a reliable first choice when you need fast application across a large herd without compromising on coverage.

Cydectin Pour-On is also suitable for treating parasites in red deer.

Active ingredient: Moxidectin @ 5g/L 

Comparable to: Neovemox Pour-On for Cattle, Cattleguard Pour-On for Cattle, Moxistar Cattle Pour-On

Key parasites: Gastrointestinal roundworms, lungworms, lice, cattle ticks, mites, and buffalo fly

Withholding periods: Nil milk and meat

Registrant: Virbac (Australia) Pty Ltd (APVMA #45970)

2. Best for resistance management: Dectomax V Dual Combination Injection

Dectomax V is an injectable drench designed specifically to address Australia’s growing resistance challenge. It combines doramectin (a macrocyclic lactone) with levamisole (from a different drench class) to deliver dual-active killing power against gastrointestinal worms, including strains already resistant to one of the two ingredients present.

It ensures accurate dosing every time and eliminates weather-based absorption concerns. As well as gastrointestinal worms, Dectomax V controls cattle tick and sucking lice for up to 56 days, and is safe for use in pregnant animals. It’s well-suited as a quarantine drench, for weaners and young stock, and for adult cattle in high-resistance environments. It is also commonly used for managing gastrointestinal worms in sheep. 

Active ingredients: Doramectin @ 5g/L and levamisole hydrochloride @ 150g/L 

Comparable to: N/A 

Key parasites: Gastrointestinal worms, cattle tick, and sucking lice in cattle; gastrointestinal worms in sheep 

Withholding periods: 60 days (milk and meat) 

Registrant: Zoetis Australia Pty Ltd (APVMA #90001)

3. Best for extended protection: Cydectin Long-Acting Injection

While standard injectables provide weeks of protection, Cydectin Long-Acting delivers a significantly longer coverage period. Its unique sustained-release formula prolongs the delivery of moxidectin into the bloodstream, leading to higher plasma concentrations for longer and offering control of the small brown stomach worm (Ostertagia spp.) for up to 112 days with just one dose. Cydectin Long-Acting works rapidly, too, with peak concentrations reached within 36 hours of injection. This product also covers sucking lice, mites, lungworms, roundworms, and cattle tick, the latter of which is controlled for 56 days. 

Cydectin Long-Acting Injection is particularly valuable at strategic treatment points, for pre-joining or weaning, or when entering high-pressure tick seasons. It’s easily used to ‘set and forget’ your protection for extended periods, rather than scheduling repeat treatments.

Like standard Cydectin it has no known impact on dung beetle populations. However, producers should note that due to the injectable nature of this product, it carries a milk withholding period of 80 days and a meat withholding period of 56 days.

Active ingredient: Moxidectin @ 100mg/mL

Comparable to: Neovemox Long-Acting Injection for Cattle

Key parasites: Gastrointestinal roundworms, sucking lice, mites, lungworms, and cattle tick

Withholding periods: Milk — 80 days; meat — 56 days

Registrant: Virbac (Australia) Pty Ltd (APVMA #60116)

4. Best for dairy producers: Neoverin Cattle Pour-On

Dairy producers face a challenge that beef operations don’t — most drenches carry milk withholding periods that make treatment during lactation commercially inviable. Neoverin Cattle Pour-On is a eprinomectin-based formulation that solves this, offering nil milk and meat withholding periods. 

A single low-volume pour-on application treats and controls both internal and external parasites in beef and dairy cattle, including gastrointestinal roundworms, lungworms, lice, and mites. It also controls internal parasites found in deer, making it a versatile option on properties with mixed livestock. 

For dairy herds where treatment timing can’t be dictated by withholding periods, Neoverin offers the flexibility to drench when parasite pressure demands it.  

Active ingredient: Eprinomectin @ 5g/L

Alternative products: Ivomec Eprinex Pour-On for Beef and Dairy Cattle

Key parasites: Gastrointestinal roundworms, lungworms, lice, mites, ticks, and buffalo fly

Withholding periods: Nil milk and meat

Registrant: Neove Pharma Australia Pty Ltd (APVMA #84904)

5. Best for liver fluke control: Fasinex 240 Oral Flukicide

Gastrointestinal worms get most of the attention in cattle parasite management, but liver fluke (Fasciola hepatica) can be equally devastating in wet, low-lying country across Queensland and Northern New South Wales. Fasinex 240 is the benchmark oral flukicide for cattle, set apart by its efficacy across all three stages of liver fluke development — early immature, immature, and adult — where most flukicides only treat adult fluke. Triclabendazole’s ability to kill early immature stages makes Fasinex particularly effective for treating acute outbreaks before significant liver damage has occurred.

This product is suitable for beef cattle and dry dairy cattle (must be used more than 21 days before calving), and is used for both treating active infestations and strategic pasture management in high fluke-risk areas, like those that hold significant water after rain.

Active ingredient: Triclabendazole @ 240g/L

Comparable to: Exifluke 240 Oral Flukicide for Cattle

Key parasites: Liver fluke

Withholding periods: 21 days (milk and meat) 

Registrant: Elanco Australasia Pty Ltd (APVMA #51262)

6. Best value drench: CattlePro Pour-On

For producers who want reliable, broad-spectrum parasite control without paying a premium for a brand name, CattlePro Pour-On is hard to beat. It’s Specialist Sales’ highest-selling cattle drench, delivering years of consistent customer results across beef and dairy operations in Australia.

CattlePro is an ivermectin-based pour-on formulated to treat and control ivermectin-sensitive internal and external parasites. Applied along the backline at 1mL per 10kg of bodyweight, it delivers the same results as well-known branded ivermectin products at an accessible price point for operations of all sizes.

Active ingredient: Ivermectin @ 5g/L

Comparable to: Ivomec Pour-On for Cattle

Key parasites: Internal and external parasites including cattle tick and lice

Withholding periods: Milk — nil; meat — 28 days

Registrant: Specialist Sales Pty Ltd (APVMA #80714)

A well-rounded parasite control program, for most Australian cattle operations, will draw on more than one of these products throughout the year. It’s important to rotate drench classes, use combination actives if resistance is a concern, and critically, match your choice of formulation to your circumstances.

Not sure which products are right for your herd? The team at Specialist Sales can help you build a program tailored to your region, cattle class, and management calendar. Browse our full cattle drench range, or get in touch to chat options.