Avomec Duel is a dual-active oral drench for sheep: abamectin 1 g/L plus closantel 50 g/L. The closantel is what sets it apart — it gives roughly six weeks of sustained activity against closantel-susceptible barber's pole worm, so it is a summer drench on barber's pole country rather than a general-purpose one.
The cost of that persistence is the withholding period: 49 days meat and an 84-day export slaughter interval, which is long enough to matter if stock are close to sale. Plan the treatment around the turn-off date, not the other way around.
Supplied in 5L and 10L. Dose rate is 1 mL per 5 kg bodyweight.
Key points
- Abamectin 1 g/L + closantel 50 g/L
- Six weeks sustained activity against closantel-susceptible barber's pole worm
- Meat WHP 49 days, ESI 84 days
- Not for lambs under 6 weeks or under 10 kg; ewes may be treated at any stage of pregnancy
- Schedule 6, over the counter
Controls
Gastrointestinal roundworms; lungworm (Dictyocaulus filaria); mature and late immature liver fluke (Fasciola hepatica); larval nasal bot (Oestrus ovis); itch mite (Psorergates ovis). Not for use in ewes producing, or that may in future produce, milk for human consumption. Store below 30°C.
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.