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Product Description

​A milky blue, mineralised, triple-combination (white, clear and endectocide), oral drench.

Why Use Trio® Sheep

  • Ideal as part of a routine parasite control programme, and for use as a quarantine drench
  • Effective against all adult and immature roundworms, lungworm, tapeworm, adult liver fluke, nasal bot and itch mite

Withholding Period

Meat: 14 days.
Milk: 35 days.


​1 g/L abamectin (macrocyclic lactone).
25 g/L albendazole (white drench).
40 g/L levamisole (clear drench).
1.0 g/L iodine ⋅ 0.2 g/L cobalt.
2.1 g/L copper ⋅ 0.6 g/L zinc ⋅ 0.5 g/L selenium.

Regulatory Information

  • Agrecovery.
  • EPA approval No HSR100146.

Registered pursuant to the ACVM Act 1997, No A10662.
Trio® is a registered trademark (811167) of Ravensdown.

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Product Sizes available

  • 20 L

Delivery Options

  • Freight to farm
  • Ravensdown pickup point

Important Information

  • Application and advice

    Administer orally.

    Dose rate
    1mL per 5kg live-weight.

    For use as a quarantine drench
    Treat all animals on arrival, or ideally at farm of origin, and hold in yards for 24 hours before release.

    We recommend the following applicators: 15mL Multi-Use Gun30mL Multi-Use Gun.


    • Do not exceed the stated dose.
    • Doses of three times (or more) those recommended can cause symptoms of levamisole toxicity. Estimate live-weight carefully.
    • Dehydrated animals may be more susceptible to toxicity.
    • Fatal interactions may occur between levamisole and organophosphate dips.
    • Do not use at the same time as any other selenised animal health product without consulting your veterinarian, or animal health adviser.

    See the product label for full details.

  • Efficacy Spectrum

    Trio® Sheep is effective against susceptible strains of the following parasites:

    Adult and immature gastrointestinal roundworms

    • Haemonchus contortus.
    • Teladorsagia (Ostertagia) circumcincta.
    • Trichostrongylus colubriformis.
    • Trichostrongylus axei.
    • Trichostrongylus vitrinus.
    • Cooperia spp.
    • Nematodirus spp.
    • Chabertia ovina.
    • Oesophagostomum venulosum.
    • Trichuris ovis.
    • Strongyloides papillosus.
    • Bunostomum spp.


    • Dictyocaulus viviparus.


    • Moniezia spp.

    Liver Fluke

    • Adult Fasciola hepatica.

    Reduces the output of viable fluke eggs.

    Itch Mite

    • Psorergates ovis.

    Nasal Bot

    • Oestrus ovis.
  • Withholding period

    Meat withholding
    Sheep producing meat (or offal) for human consumption must not be sold for slaughter during treatment, and within 14 days of treatment.

    If a pregnant ewe is treated, and lambs within the meat withholding period, the lamb is fit for slaughter only when the ewe is fit for slaughter.

    A ewe is treated with Trio® Sheep 10 days before lambing. The lamb cannot be slaughtered (for human consumption) until 4 days after the date of birth.

    Milk withholding
    Milk intended for sale for human consumption must be discarded during, and within 35 days of last treatment.

  • Packaging and storage

    • Tap screwed into underside of main cap.
    • Small breather bung on drum accessed by removed aluminium ring.
    • Pallet of 40 x 20L drums.
    • AgRecovery eligible.

    Store in the original container, tightly closed, in a cool, dry, locked place, away from direct sunlight.

    Store below 25°C. Do not freeze.

    Shelf-life is 21 months from date of manufacture.