Virbamec LV Pour-On For Cattle (Ivermectin)

Virbamec LV Pour-On For Cattle is for the treatment and control of Ivermectin sensitive internal and external parasites of beef and dairy cattle

Virbamec LV Pour-On For Cattle contains Ivermectin in a low volume, vegetable oil based formulation that is non-flammable & low odour.

Active Ingredient: 10mg/mL Ivermectin 

Similar or Comparable to: Starmec LV Pour-On (Hunter River)

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Virbamec LV Pour-On For Cattle (Ivermectin) VIRBAMEC-LV-POUR-ON Virbac


Virbamec LV Pour-On for Cattle

Active Ingredient: 10mg/mL Ivermectin 

Similar or Comparable to: Starmec LV Pour-On (Hunter River)

Virbamec LV Pour-On For Cattle is for the treatment and control of Ivermectin sensitive internal and external parasites of beef and dairy cattle

What Is Virbamec Lv Pour-On?

  • A macrocyclic lactone (ML) or “mectin” class pour-on drench for cattle
  • Contains Ivermectin
  • Broad spectrum control of internal and external parasites
  • Low volume formulation (15L Virbamec is equiv. to 30L normal strength drench)
  • Non-flammable, low odour vegetable oil base

Why Choose Virbamec Lv Pour-On?

Control of internal parasites – Virbamec LV Pour-On offers excellent control and a high level of efficacy against Ivermectin sensitive gastrointestinal roundworms and lungworm. It also offers persistent activity against lungworm (up to 28 days) and small brown stomach worm (Ostertagia spp) (up to 14 days).

Control of external parasites –  Virbamec LV Pour-On offers excellent control of both sucking and biting lice, mites and cattle tick. It also controls buffalo fly and protects cattle from reinfestation for up to 21 days.

Low volume dose –  The low volume dose of Virbamec LV Pour-On makes it easy to apply, even to large animals and also provides the convenience of fewer drums to clean and dispose of.

User friendly vegetable oil formulation – Virbamec LV Pour-On’s vegetable oil formulation means that it has no offensive fumes, is easy on applicator guns, flows steadily from the gun and is less likely to splash or run off the animal’s back than solvent based pour-ons. Virbamec LV Pour-On is also non-flammable.

Rainfast –  The efficacy of Virbamec LV Pour-On is unlikely to be affected if rain falls as soon as two hours after application.

Nil milk withhold –  Virbamec LV Pour-On can be used on lactating dairy cows, giving dairy farmers the fl exibility to treat their animals at the optimal time.

Short meat withholding period and ESI – Virbamec LV Pour-On has a short meat withholding period and export slaughter interval of 21 days, allowing producers the flexibility to market animals as soon as a real benefit from treatment is seen.


Virbamec LV Pour-On is effective against sensitive strains of the following internal and external parasites in cattle:

Gastro-Intestinal Roundworms:

  • Small brown stomach worm (including inhibited stages) – Ostertagia ostertagi
  • Barber’s pole worm – Haemonchus placei
  • Stomach hair worm – Trichostrongylus axei
  • Nodule worm – Oesophagostomum radiatum
  • Small intestinal worm – Cooperia oncophora
  • Small intestinal worm – C. punctata
  • Large bowel worm – Oesophagostomum venulosum
  • Whipworm – Trichuris spp
  • Intestinal threadworm – Strongyloides papillosus
  • Thin necked intestinal worm – Nematodirus spp
  • Hookworm – (including third and fourth stage larvae) – Bunostomum phlebotomum
  • Lungworm – Dictyocaulus viviparous

Long nosed sucking louse – Linognathus vituli

Short nosed sucking louse – Haematopinus eurysternus

Biting louse – Bovicola bovis

Little blue sucking louse – Solenopotes capillatus

Mites – Chorioptes bovis, Sarcoptes scabei var bovis

Cattle tick – Boophilus microplus

Buffalo fly – Haematobia irritans exigua

Pack Sizes: 2.5L, 5L & 15L

Registrant: Virbac Australia Pty Ltd (APVMA #: 56736)

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Features & Benefits

  • Contains the active ingredient Ivermectin.
  • Controls both internal and external parasites.
  • Low volume pour-on application for easy handling and application.
  • Virbamec LV pour-on works using a unique vegetable oil based ivermectin formulation, so it is non-flammable, non-volatile and very safe.
  • Wide margin of safety when used as directed.
  • With Virbamec LV pour-on’s nil milk withholding period, you can be sure that every cow you milk will return the maximum yield.

Directions Of Use


Virbamec LV Pour-On is given topically at the recommended dose rate of 1mL/20kg bodyweight

Liveweight (kg)

Dose Volume (mL) Cattle treated per 2.5L pack

Cattle treated per 15L pack


5 500 3000
101-150 7.5 330



10 250 1500
201-250 12.5 200



15 166 1000
301-350 17.5 142



20 125 750
401-450 22.5 111



25 100 600
501-550 27.5 90



30 83



32.5 76


Animals in excess of 650kg bodyweight to be dosed at 1mL/20kg


  • Virbamec LV Pour-On is administered along the backline, starting at the shoulders of the animal using a suitable pour-on applicator.
  • Dose the mob according to the heaviest animal in each group (bulls, cows, calves, heifers).
  • A representative sample of animals should be weighed before treatment either with scales or a weighband.
  • Do not underdose.
  • Where there is a large variation in size within the group, draft into two or more lines based on bodyweight to avoid excessive overdosing.
  • Check accuracy of drenching equipment before and during use.

Rates Are a General Guide Only. Before Opening, Carefully Read Virbamec LV Pour-On For Cattle Directions for Use, Precautionary and Protection Statements, Storage and Disposal, Safety Directions and First Aid Instructions.

Questions and answers from customers

    Should ivermectin be stored in the fridge?
  1. Q Should ivermectin be stored in the fridge?
    Asked by Mandy Macleod on December 24, 2021 7:07 am
    Answered by the admin

    Ivermectin (including Virbamec LV Pour-On) should be stored below 30 Degrees Celsius (room temperature) and protected from light.  Ivermectin will be severely damaged if allowed to overheat (>30o) or freeze.  It does not need to be kept in a fridge when not in use.

Send me a notification for each new answer.

Disclaimer: This information and product advice is not intended to be advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.

Host & Pest

Host Pest
Host & Pest
Cattle Barber's Pole Worm - Haemonchus Placei, Buffalo Fly, Cattle Biting Louse, Cattle Tick, Chorioptic Mange Mite, Cooperia Oncophora, Cooperia Punctata, Hookworm - Bunostomum Phlebotomum, Intestinal Threadworm - S. Papillosus, Large Bowel Worm - O. Radiatum, Large Lungworm - Dictyocaulus Viviparus, Longnosed Cattle Louse, Sarcoptes Scabei Var. Bovis, Shortnosed Cattle Louse, Small Brown Stomach Worm - O. Ostertagi, Stomach Hair Worm, Thin Necked Intestinal Worm N. Spathiger, Tubercle-bearing Louse, Whipworm - Trichuris Spp.

Tips For Use

When to Use Virbamec Lv Pour-On:

Timing of treatments

Virbamec LV Pour-On provides broad spectrum control that can be used to suppress parasite populations at strategic times. For instance, an early spring treatment can reduce parasite problems occurring later in summer and autumn while a pre-winter treatment can be used to suppress early louse populations and also to clean out any parasites picked up over the warmer months prior to the animals facing the feed stresses of winter. Specific treatments may also be required to limit the impact of parasites when animals need to perform at their best and can least afford losses from disease. Important treatments include:

  • Weaning and post-weaning – Calves often suffer substantial nutritional and environmental stress when weaned, but any check to their growth at this stage can lead to stunting and permanent underperformance.
  • Pre-joining – Body condition plays a key role in conception rates. Treatment of bulls and cows about a month prior to joining can minimise nutritional losses associated with parasitic disease.
  • Pre-calving – Cows cannot afford losses to parasites as well as provide the best milk output.

Tick treatments

Virbamec LV Pour-On can be used as part of a strategic tick control program. Treatments should be timed for when other parasites such as roundworms require control and repetitive use of the product (or any ML) throughout the entire tick season should be avoided.

Worm testing

Worm egg counts provide valuable information to optimise drench timing. Egg counts will reveal production limiting worm infections long before clinical signs such as scouring or wasting are evident. A larval differentiation assay provides identifi cation of the worm species present so that the optimal type of drench can be selected. As adult cattle generally develop good immunity to worms, egg counts are not a reliable indicator of worm burdens in cattle after about 12 months of age


Temporary hair loss may occur at the site of application. This resolves without treatment.

Not recommended for use prior to events in show cattle.

Re Treatment Interval:

Do not retreat with Virbamec LV Pour-On within 21 days.

First Aid:

  • If poisoning occurs contact a doctor or Poisons Information Centre. Phone Australia 131 126.
  • For further information, refer to the Safety Data Sheet (SDS).

Withholding Period

Withholding Period Details (WHP):

  • Meat: Do not use less than 21 days before slaughter for human consumption
  • Milk: 0 days
  • Export Slaughter Interval (ESI): Do not use less than 21 days before slaughter for export.

SDS & Technical

Virbamec LV Pour-On For Cattle Label Download Pdf
Virbamec LV Pour-On For Cattle SDS Download Pdf
Virbamec LV Pour-On For Cattle Technote Download Pdf

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