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.

Recommendations for Use

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 ostertagi* – Small brown stomach worm
  • Haemonchus placei – Barber's pole worm
  • Trichostrongylus axei – Stomach hair worm
  • T. colubriformis – Black scour worm
  • Cooperia spp.* – Small intestinal worm
  • Cooperia oncophora*
  • Bunostomum phlebotomum – Hook worm**
  • Oesophagostomum radiatum – Nodule worm
  • Nematodirus spathiger – Thin necked intestinal worm**
  • Thelazia spp. – Eye worm**
  • Trichuris spp. – Whipworm

*including inhibited larvae. **adults only.

Lungworms (adults and immature)

  • Dictyocaulus viviparus.

Sucking lice

  • Linognathus vituli, Haematopinus eurysternus, Solenopotes capillatus.

Biting lice

  • Bovicola bovis.

Buffalo fly

  • Haematobia irritans exigua.

Cattle tick†

  • Boophilus microplus. †Engorged female ticks that drop off for up to 3 days after treatment may lay viable eggs.

Mange mites

  • Chorioptes bovis, Sarcoptes scabiei var. bovis§.

§Not present in Australia.

The Zoetis Advantage

Dectomax delivers like no other cattle drench

Control of the worms that matter

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

Nil milk WHP

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

Broader coverage

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.

Longer protection

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.

Fewer treatments

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.

Wide safety margin

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.


  • 1 mL of solution/10 kg 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 table 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: 1 mL per 10 kg bodyweight

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

Cattle whose weight is in excess of 650 kg should be dosed at 1 mL per 10 kg body weight.

Treatment of very young animals (less than 40 kg body weight) is generally not warranted.

Pack Sizes 

  • 2.5L multi-dose backpack container with easy to use draw off applicator
  • 5L    multi-dose backpack container with easy to use draw off applicator
  • 22L  Drum 

Additional Information

Persistent protection

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.

Registered Label Warnings

Withholding periods

Milk: Nil.

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

Export Slaughter Interval (ESI): DO NOT USE less than 42 days before slaughter for human consumption.

Safety Directions

  • Poisonous if swallowed.
  • Will irritate the eyes and skin.
  • Avoid contact with skin and eyes.
  • When using the product wear face shield or goggles.
  • If product splashes in the eyes, wash it out immediately with water.
  • Wash hands after use. After each day's use wash face shield or goggles.
  • Use only in well ventilated surroundings.
  • Flammable – Keep away from heat, sparks, open flame and other sources of ignition.

First Aid

If poisoning occurs, contact a doctor or Poisons Information Centre. Phone 13 11 26. If skin contact occurs, remove contaminated clothing and wash skin thoroughly.

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