Dectomax Pour-On


Dectomax Pour-On Endectocide is a highly active broad spectrum parasiticide for topical administration to cattle.

Key Benefits

Dectomax Pour-On is a class above the rest by delivering superior performance for your cattle. The reliable all-rounder has been used across Australia for many years to control both internal and external parasites. It’s also convenient and easy to administer, indicated for all ages and classes of stock and provides persistent control of buffalo fly for up to 14 days. What’s more, its unique mode of action provides up to 35 days protection against the 5 major worms that affect your herd’s productivity. So you don’t just pour on the product, you also pour on the profits.

Approved Uses

Dectomax® Pour-On Endectocide is for the treatment and persistent control of gastrointestinal roundworms, lungworms and buffalo fly in cattle. Controls eye worms, sucking and biting lice, mange mites and cattle ticks.
Dectomax ®Pour-On Endectocide is highly effective in the treatment and control of the following species:

Gastrointestinal Roundworms (adults and fourth-stage larvae)

  • Ostertagia ostertagi1– Small brown stomach worm
  • Haemonchus placei – Barber’s pole worm
  • Trichostrongylus axei– Stomach hair worm
  1. colubriformis– Black scour worm
  • Cooperia spp1 Small intestinal worm
  • Cooperia oncophora1
  • Bunostomum phlebotomum– Hook worm 2
  • Oesophagostomum radiatum – Nodule worm
  • Nematodirus spathiger- Thin necked intestinal worm2
  • Thelazia spp – Eye worm2
  • Trichuris spp – Whipworm

1 including inhibited larvae
2 adults only

Adult and immature Lungworm

  • Dictyocaulus viviparus

Sucking Lice

  • Linognathus vituli, Haematopinus eurysternus, Solenopotes capillatus

Biting Lice

  • Bovicola bovis

Buffalo Fly

  • Haematobia irritans exigua.

Cattle Tick3

  • Boophilus microplus

Mange Mites

  • Chorioptes bovis, Sarcoptes scabiei var. bovis4

3 Engorged female ticks that drop off for up to 3 days after treatment may lay viable eggs
4 Not present in Australia

Dectomax® delivers like no other cattle drench

    No other drench consistently delivers, 35 days persistent activity against all three of the most prevalent internal parasites of grazing cattle in Australia,Cooperiaspp, Ostertagiaand Haemonchus. To discover the most important cattle worms in your area visit

With a nil milk WHP, Dectomax PO is the perfect choice for parasite management in dairy cattle at dry off.

      Dectomax® protects against re-infection from more of the important profitability-robbing parasites, both internal and external*, than any other cattle drench. Maximum weight gains from superior parasite control.
      Dectomax® contains the unique molecule doramectin, with a chemical ring at the C-25 position of its core active structure. This makes Dectomax®active for longer, so it protects for longer.
      Because it protects for longer, Dectomax® keeps pastures cleaner for longer. Which means you can extend the time between treatments. And fewer treatments save time and money.
      Dectomax® has a wide safety margin in all ages of stock, including young calves, pregnant stock and bulls. Its broad spectrum of activity, favourable pharmacokinetics and exceptional toleration make it an ideal product for application as an anti-parasitic for cattle.

Rain fast:

The efficacy of Dectomax® Pour-On Endectocide is not adversely affected if applied when the hide is wet or if rain falls shortly after treatment. However, treatment of animals with wet hides or when rain threatens should be avoided as it is not good agricultural practice.

Dosage and Administration

DOSE: 1mL of solution / 10kg body weight.
Apply topically along the mid-line of the back in a narrow strip between the withers and tailhead. For external use only.
Use the dose rate, according to the weight of the animal, given in the tables below. The dose rate should be based on the heaviest member in the weight range (given under the heading “weight (kg)”). Cattle should be weighed using scales or a weighband.

DOSE RATE: 1mL per 10kg bodyweight

Weight (kg) Dose (mL) Weight (kg) Dose (mL)
40-50 5 301-350 35
51-75 7.5 351-400 40
76-100 10 401-450 45
101-150 15 451-500 50
151-200 20 501-550 55
201-250 25 551-600 60
251-300 30 601-650 65

Cattle whose weight is in excess of 650kg should be dosed at 1mL per 10kg body weight. Treatment of very young animals (less than 40kg body weight) is generally not warranted.

Additional Information

Extensive studies have also demonstrated the following levels of persistent protection against re-infection from important worm species.

Species Period of protection following treatment
Ostertagia ostertagi Up to 35 days
Haemonchus placei Up to 35 days
Trichostrongylus axei Up to 35 days
Cooperia spp Up to 35 days
Cooperia oncophora Up to 21 days
Dictyocaulus viviparus Up to 28 days
Oesophagostomum radiatum Up to 21 days
Bunostomum phlebotomum Up to 21 days
  • Dectomax®Pour-On Endectocide controls buffalo flies (Haematobia irritans exigua) for up to 14 days after treatment.

Withholding periods: 

Milk: Nil

Meat: DO NOT USE less than 42 days before slaughter for human consumption.

EXPORT SLAUGHTER INTERVAL: DO NOT USE less than 42 days before slaughter for human consumption.

Pack Sizes

  • 2.5 L
  • 5 L
  • 17.5 L
  • 22 L multi-dose backpack containers with easy-to-use draw-off applicators.