Coopers Flexolt | Sheep Lice Treatment
Learn how Coopers Flexolt delivers oral sheep lice treatment with rainfast protection, flexible timing, and nil wool WHP.
Coopers Flexolt is the world’s first oral sheep lice treatment, delivering systemic lice control from inside the animal rather than through external wool application.
Because Flexolt works internally, it remains effective regardless of wool length, weather conditions, shearing schedule, or mob composition. Producers can treat sheep at any time of year without waiting for ideal shearing conditions or dry weather windows.
Flexolt is administered using a standard drench gun, eliminating the need for specialised applicator equipment. Treatment efficacy remains consistent whether sheep are:
Unlike pour-on and jetting products, wool length does not impact performance.
Rain before or after treatment does not compromise efficacy.
This is a major advantage over pour-on and jetting products where rainfall shortly after application can reduce treatment effectiveness.
Flexolt contains Fluralaner, an Isoxazoline active ingredient not used in any other Australian sheep lice treatment.
This makes it an effective rotation partner and highly effective against:
Treat sheep immediately after discovering lice in long wool without waiting months for shearing.
Treat rams, ewes, or weaners immediately off the truck regardless of wool length or shearing history.
Treat mobs with different wool lengths during a single treatment event.
Treat ewes and lambs together during one yard event. Lambs can be treated from 6 kg bodyweight.
Treat sheep in any weather without rescheduling due to rain.
Missed cuts, wrinkles, or incomplete clip coverage do not affect treatment performance because delivery is oral rather than external.
No wet fleeces, cold-water exposure, or hyperthermia risks during winter treatment programs.
Treat sale rams or show sheep when it suits preparation schedules rather than shearing dates.
| Bodyweight / Dose | Flexolt | Extinosad | Exilice | Eradicator |
|---|---|---|---|---|
| 40 kg | $1.51 | $0.77 | $0.82 | $0.77 |
| 50 kg | $1.89 | $0.77 | $1.02 | $0.96 |
| 60 kg | $2.27 | $0.77 | $1.22 | $1.15 |
| 70 kg | $2.77 | $1.53 | $1.43 | $1.34 |
Flexolt costs more per head than standard pour-on products, but it provides flexibility that many operations cannot achieve with traditional lice treatments.
| Feature | Specification |
|---|---|
| Active Ingredient | Fluralaner 10 g/L |
| Chemical Class | Isoxazoline |
| Administration | Oral — standard drench gun |
| Dose Rate | 1.5 mL per 10 kg bodyweight |
| Application Window | Any time — no shearing restriction |
| Pack Sizes | 5L, 20L |
| Meat WHP | 14 days |
| Wool WHP | Nil |
| ESI | 54 days |
| Retreatment Interval | Do not retreat within 54 days |
| Minimum Weight | 6 kg bodyweight |
| Safe for Breeding Stock | Yes |
| Cost at 50 kg | $1.89/head |
| When the customer says… | You can say… |
|---|---|
| “It’s twice the price of Extinosad.” | Flexolt can treat long wool sheep, lambs at foot, and can be used regardless of rain or shearing schedules. |
| “I’ll wait until shearing.” | Delayed treatment can increase fleece derangement, wool rubbing damage, and production loss. |
| “I’ve purchased rams – can I use a cheaper product?” | Flexolt can be used immediately regardless of wool length or shearing history. |
| “It’s a new product – has it been proven?” | Fluralaner is the same active class used in Bravecto and has been extensively trialled in sheep. |
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