.responsive { width: 100%; height: auto; }


DECTOMAX V® Injectable Parasiticide


  • DECTOMAX V is an evolution from Dectomax which has been trusted and used across Australia for over 20 years. DECTOMAX V combines the trusted performance of doramectin, from Dectomax, with the added strength of an active called levamisole. DECTOMAX V provides a dual active killing power with unsurpassed efficacy against key parasites, including those often resistant to other drenches.
  • DECTOMAX V is an injectable formulation to ensure your cattle get the right dose every time helping them stay healthy, as well as ahead of resistance.
  • Dectomax V provides premium performance for leading cattle producers.
    • New Dual Active Drench Technology - resistance breaking
    • High efficacy, broad spectrum parasiticide
    • Easy injectable administration for highly reliable dosing
    • Treats gastrointestinal worms, cattle tick, sucking lice

Recommendations for Use


  • Want the newest premium performance drench available in the Australian market to treat their cattle due to its outstanding efficacy against key gastrointestinal parasites, as well as treating cattle ticks and sucking lice.
  • Have resistance
  • Have emerging resistance
  • Want to stay ahead of resistance

The Zoetis Advantage

When you treat a population of worms with a single active drench some worms may be resistant, and this leads to an ineffective kill and reduced efficacy. But when treating with DECTOMAX V, a drench that combines two powerful actives with different modes of action, both of which are targeting the same worm to ensure an effective kill, even resistant worms are killed, unlocking your herd’s full productivity potential.


DECTOMAX V achieved 99.8% Efficacy across all field studies. Proven Results…

Thirteen separate studies were conducted in multiple regions and conditions in Australia, with over 1000 beef and dairy cattle. In every study DECTOMAX V consistently demonstrated high efficacy.


  • New dual active drench technology – resistance breaking
  • High efficacy, broad spectrum parasiticide
  • Easy injectable administration for highly reliable dosing
  • Treats gastrointestinal worms, cattle ticks, sucking lice
  • Safe for use in pregnant animals
  • 28-day re-treatment interval
  • Use Dectomax V with confidence. It has no long-term adverse effects on dung beetle populations
  • The only combination drench that prevents the development of viable ticks for 30 days
  • Treats and controls sucking lice for up to 56 days
DECTOMAX V Label claims

For the treatment and control of adult and L4 larval stages of gastrointestinal worms including both ML and levamisole resistant strains^:

  • Small intestinal worm - Cooperia oncophora, Cooperia punctata, Cooperia pectinata, Cooperia surnabada
  • Barber’s Pole worm - Haemonchus placei
  • Brown stomach worm - Ostertagia ostertagi
  • Stomach hair worm - Trichostrongylus axei, Trichostrongylus longispicularis (adults only)
  • Nodule worm - Oesophagostomum radiatum (adults only)
  • Thin-necked intestinal worm – Nematodirus helvetianus (adults only)

For the treatment and control of sucking Lice (Linognathus vituli, Solenopotes capillatus) for up to 56 days

For the treatment and control of cattle tick (Rhipicephalus (Boophilus) microplus) including SP, OP and amide resistant strains. Prevents the development of viable ticks for a period of 30 days

^ Refer to product label for registered label claims.

An injectable formulation for the right dose every time

When dealing with resistant parasites, delivering the right dose is vital. DECTOMAX V is an injectable formulation that provides you with easy reliable dosing so you can keep resistance at bay. When a drug is delivered by injection, all of the potential barriers to absorption are avoided. An injectable drench is deposited below the skin and absorbed directly into the bloodstream. Injectable drenches therefore achieve higher peak blood and tissue levels compared to pour-ons. Pour-on products result in variable dosing of cattle, as some of the pour-on product is absorbed across the skin and some is absorbed by cattle licking the product off themselves and other cattle. Therefore, the licking behaviours of different cattle can result in unreliable dosing and even underdosing.


  • 1 mL/25 kg of bodyweight by subcutaneous injection.
  • Do not exceed 10 mL at a single injection site. For cattle over 250 kg bodyweight, divide the dose so that no more than 10 mL is injected in one site. For example: a 300 kg animal requires a 12 mL dose which can be administered as 2 x 6 mL doses.

Storage & Packaging

  • Packaged in a 500 mL amber glass bottle in a recyclable protective sleeve
  • Store below 25 °C (air-conditioning)

Withholding periods

  • WHP & ESI: 35 DAYS.

  • MILK WHP: Do not use in cattle during lactation or less than 60 days before calving when milk products are to be used for human consumption or processing.
  • RETREATMENT INTERVAL: Do not re-treat animals for 28 days after last treatment.


A Better Way To Buy