Vetsense Eprinomec Pour-On for Cattle is a broad-spectrum pour-on containing 5 mg/mL eprinomectin for the treatment and control of eprinomectin-sensitive internal and external parasites in beef and dairy cattle.
Where this product really differs from a number of other common cattle pour-ons is its combination of broad parasite coverage, zero-day meat withholding, zero-day milk withholding and zero-day Export Slaughter Interval (ESI), together with persistent activity against selected worms and a formulation Vetsense describes as completely weatherproof.
You can also compare Eprinomec with other cattle pour-on ranges in our Cattle Pour-On Treatments Australia collection.
What makes Eprinomec different?
Not all cattle pour-ons are interchangeable. Products can differ in active ingredient, parasite claims, withholding periods, weather resistance and whether they are suitable for dairy cattle.
According to current Vetsense product information, Eprinomec stands out for:
- 5 mg/mL eprinomectin
- 0-day meat withholding
- 0-day milk withholding
- 0-day ESI
- Broad internal and external parasite coverage
- Persistent activity against selected worms for up to 21–28 days
- A completely weatherproof formulation
- Use in both beef and dairy cattle
- Approved parasite claims in deer as well as cattle
Eprinomec vs Ivermec: the biggest practical difference
Vetsense Eprinomec and Vetsense Ivermec are both cattle pour-ons from the macrocyclic lactone family, and both are applied along the topline. However, they contain different active ingredients.
| Product | Active ingredient | Meat withholding | Milk withholding | ESI |
|---|---|---|---|---|
| Vetsense Eprinomec | Eprinomectin 5 mg/mL | 0 days | 0 days | 0 days |
| Vetsense Ivermec | Ivermectin 5 mg/mL | 42 days | 0 days | 42 days |
For producers managing cattle close to sale, slaughter or milk production, that withholding difference can be significant. Eprinomec may therefore be particularly useful where a broad-spectrum pour-on is required without introducing a meat or milk withholding period.
Weather resistance is another notable difference. Vetsense describes Eprinomec as completely weatherproof, while the current Ivermec directions warn that treatment on wet cattle or rain within two hours may reduce efficacy.
Eprinomec vs Triclamec Ultra
These two products are designed for different situations.
Eprinomec contains eprinomectin and is focused on broad control of susceptible gastrointestinal worms, lungworm, lice, mites and buffalo fly, with an aid-in-control claim for cattle tick.
Triclamec Ultra combines abamectin with triclabendazole and has specific claims against all three stages of liver fluke as well as roundworms and external parasites.
| Product | Main difference | Meat withholding | Dairy use |
|---|---|---|---|
| Eprinomec | Broad eprinomectin-sensitive parasite control | 0 days | Suitable for beef and dairy cattle |
| Triclamec Ultra | Includes triclabendazole for liver fluke control | 49 days | Not for cows producing or that may produce milk for human consumption |
If liver fluke is the main problem, a product carrying a specific liver-fluke claim may be more appropriate. If zero withholding for meat and milk is important, Eprinomec has a very different profile.
What parasites does Eprinomec control?
Vetsense lists Eprinomec for treatment and control of susceptible adult and immature stages of a broad range of cattle parasites, including:
- Small brown stomach worm
- Barber's pole worm
- Stomach hair worm
- Intestinal hair worm
- Small intestinal worm
- Nodule worm
- Thin-necked intestinal worm
- Hookworm
- Whipworm
- Lungworm
- Sucking and biting lice
- Chorioptic and sarcoptic mange mites
- Buffalo fly
When used as directed it also aids in control of cattle tick, although the label states that it is not recommended for strategic tick-control programs.
Persistent activity
At the recommended dose rate, Vetsense states that Eprinomec provides persistent control against selected susceptible worm species for extended periods after treatment.
Claims include up to 28 days for selected Ostertagia, Cooperia, lungworm, Nematodirus and Oesophagostomum infections, and up to 21 days for Haemonchus placei and selected Trichostrongylus infections.
This is useful when comparing pour-ons because two products may both treat similar parasites on the day of application but have different persistent-activity claims afterwards.
Is Eprinomec suitable for dairy cattle?
Yes. Vetsense Eprinomec is registered for beef and dairy cattle and currently carries a zero-day milk withholding period.
That is one of its most important practical differences from cattle treatments that cannot be used in cows producing milk for human consumption.
How is Eprinomec applied?
The recommended dose is 1 mL per 10 kg liveweight. It is applied to the skin in a narrow strip along the topline from the withers to the tailhead.
| Liveweight | Dose |
|---|---|
| 100 kg | 10 mL |
| 200 kg | 20 mL |
| 300 kg | 30 mL |
| 400 kg | 40 mL |
| 500 kg | 50 mL |
| 600 kg | 60 mL |
| 650 kg | 65 mL |
For heavier cattle, follow the current label directions. A representative sample of animals should be weighed and underdosing should be avoided.
Compare all five pack sizes in the Vetsense Eprinomec Pour-On Australia collection. For a focused active-ingredient comparison, read Eprinomectin vs Ivermectin for Cattle.
Available pack sizes
Vetsense Eprinomec is available in 250 mL, 1 L, 2.5 L, 5 L and 20 L, making the range suitable for small holdings through to larger commercial cattle operations.
Does changing from ivermectin to eprinomectin solve resistance?
Not automatically. Eprinomectin and ivermectin both belong to the macrocyclic lactone family. Simply changing brand names does not necessarily mean a full rotation to a different chemical class.
A parasite-control program should consider the parasite being targeted, previous treatment history, known or suspected resistance, accurate liveweights and correct dose rates. Where resistance is suspected, seek Current approved label guidance.
Who is Eprinomec likely to suit?
Eprinomec may be worth considering where producers need:
- broad internal and external parasite coverage
- a pour-on suitable for beef and dairy cattle
- zero-day meat withholding
- zero-day milk withholding
- zero-day ESI
- weather-resistant application characteristics
- persistent activity against selected worms
It is not automatically the right choice for every parasite challenge. Products such as Triclamec Ultra have different active ingredients and specific liver-fluke claims, while other pour-ons may suit different resistance-management programs.
Frequently asked questions
What is the active ingredient in Eprinomec?
Vetsense Eprinomec contains 5 mg/mL eprinomectin.
What is the meat withholding period?
The current Vetsense product information lists a zero-day meat withholding period.
What is the milk withholding period?
The current Vetsense product information lists a zero-day milk withholding period.
What is the ESI?
The current Vetsense information lists a zero-day Export Slaughter Interval. Always confirm the current ESI before use.
Is Eprinomec the same as Ivermec?
No. Eprinomec contains eprinomectin while Ivermec contains ivermectin. They are different active ingredients, although both belong to the macrocyclic lactone family.
Does Eprinomec treat liver fluke?
The current Eprinomec claims reviewed do not list liver fluke. Where liver fluke control is required, use a product carrying the appropriate registered liver-fluke claim and follow its label.
Important: Always read and follow the current registered product label before use. Product claims, withholding periods and trade advice should be checked against the current manufacturer and APVMA information.