Triguard is a triple combination oral drench for sheep — abamectin, oxfendazole and levamisole in one dose, with selenium and cobalt added. The logic of a combination is arithmetic: a worm surviving one active still has to survive the other two, so the chance of a resistant worm getting through is far lower than with any single active.
That makes it a tool for keeping resistance in check, not a licence to drench more often. A combination used as a routine every-mob-every-time drench selects against all three groups at once. Use a worm egg count to decide when to drench and a reduction test to confirm it is still working.
Supplied in 5L and 20L.
Actives
Abamectin 1.0 g/L, oxfendazole 22.7 g/L, levamisole (as hydrochloride) 33.9 g/L, selenium (as sodium selenate) 0.5 g/L, cobalt (as cobalt disodium EDTA) 2.2 g/L.
Key points
- Three chemical groups in one drench — ML, benzimidazole and levamisole
- Selenium and cobalt included
- Meat WHP 14 days, ESI 28 days
- Schedule 6
Controls
Adult and immature gastrointestinal roundworms, including inhibited fourth-stage larvae of some species: barber's pole worm, small brown stomach worm, stomach hair worm, black scour worm, small intestinal worm, thin-necked intestinal worm, hookworm, intestinal threadworm, large bowel worm, large-mouthed bowel worm, nodule worm and whipworm. Also lungworm, and the parasitic larval stages of nasal bot and itch mite. Not for use in ewes producing, or that may in future produce, milk for human consumption.
Safety
Macrocyclic lactone actives (ivermectin, abamectin, moxidectin, eprinomectin) are toxic to dogs, and severely so in herding breeds such as Collies, Border Collies, Australian Shepherds and Kelpies. Keep dogs away from treated animals until the product has dried, store the container out of reach, and dispose of empty packs and used syringes where a dog cannot get at them. Withholding periods and export slaughter intervals apply — read the label before treating any animal destined for sale, and rotate chemical groups between seasons rather than relying on one active, because resistance is the main reason a treatment stops working.