What Farmco Recommends It For:
Dectomax Pour-On suits beef and dairy producers needing serious internal and external parasite control. Plus, it’s an ideal choice at dry-off in dairy cows thanks to a nil milk withholding period. Additionally, it’s safe to use across all ages and classes — from young calves to pregnant cows and bulls. So reach for the 5L pack when running larger herds or whole-property treatment programs.
Why It’s a Farmco Favourite:
Firstly, Dectomax delivers up to 35 days of persistent activity against the most prevalent internal worms in Australian cattle. Secondly, the unique doramectin molecule keeps the product working longer than other pour-ons. Plus, it’s rainfast — effective even on wet hides or after a shower. Furthermore, it carries a nil milk WHP for dairy use at dry-off. As a result, it’s a high-performance, time-saving tool for the working cattle enterprise.
Dectomax Pour-On from Zoetis is a broad-spectrum parasiticide for cattle. Moreover, it’s powered by doramectin — a unique macrocyclic lactone with a chemical ring at the C-25 position. Therefore, Dectomax stays active longer than other ML pour-ons. As a result, you knock down gastrointestinal roundworms, lungworms, eye worms, sucking and biting lice, mange mites, cattle tick, and buffalo fly with one easy treatment.
Dectomax delivers up to 35 days of persistent activity against Ostertagia, Haemonchus, Trichostrongylus axei, and Cooperia spp. Plus, it controls buffalo fly for up to 14 days and lungworm for up to 28 days. Therefore, pastures stay cleaner for longer between treatments. As a result, you save time, save money, and keep cattle gaining weight.
Dectomax Pour-On is brought to you by Zoetis, a globally respected leader in animal health. Furthermore, the formulation is backed by decades of veterinary research and field-proven Aussie performance. As a result, you can treat with confidence using a parasiticide trusted across beef and dairy operations nationwide.
Dosage Chart
Apply topically along the midline of the back in a narrow strip between the withers and tailhead at 1mL per 10kg 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 over 650kg should be dosed at 1mL per 10kg liveweight. Treatment of very young animals under 40kg is generally not warranted. Weigh cattle using scales or a weighband and dose to the heaviest in each group.
Order Zoetis Dectomax Pour-On for Cattle 5L from Farmco — Your Trusted WA Rural Supplier
Family-owned and Australian-owned since 1939, Farmco delivers trusted rural and farm supplies across Western Australia and Australia-wide. So whether you’re after expert advice or fast dispatch, our team is ready to help.
Contact us:
- Email: info@farmco.com.au
- Online orders & enquiries: 1300 327 626
- Farmco Moora Store: (08) 9651 1312
- Office & Admin: (08) 9654 6210
- Or complete our online enquiry form and our team will be in touch.
Visit us in store:

What Farmco Recommends It For:






