Coopers Flexolt Oral Lice Treatment For Sheep

Coopers Flexolt Oral Lousicide for Sheep

Coopers Flexolt is an advanced oral lousicide for the control of biting lice (Bovicola ovis) in sheep of all ages. It contains Fluralaner, an isoxazoline compound that delivers systemic control of lice following a single oral dose, providing whole-body protection without the need for external application.

Administered via standard drenching equipment, Flexolt provides reliable elimination of biting lice in both shorn and unshorn sheep. As a systemic treatment, its performance is not affected by rainfall, fleece length, lanolin, or application technique. This makes it a practical and consistent solution across a wide range of flock management systems.

Flexolt offers a novel mode of action compared to traditional topical lousicides, making it a valuable option where resistance to synthetic pyrethroids, organophosphates, or insect growth regulators may be present. It integrates easily into existing drench programmes, reducing handling and labour while supporting effective whole-flock lice control.

With no wool withholding period, Flexolt can be used confidently in wool-producing enterprises without impacting fibre quality or marketability.

Systemic Oral Lice Control
Provides whole-body control of biting lice through a single oral dose, eliminating reliance on topical application.

Isoxazoline Mode of Action
Contains Fluralaner, delivering effective control where resistance to older chemical groups may occur.

Effective on Shorn and Unshorn Sheep
Delivers consistent results regardless of wool length, suitable for mixed-age and mixed-management mobs.

Rainfast and Application-Independent
Not impacted by rainfall, fleece condition, lanolin levels, or operator technique.

Fits Into Drench Programmes
Can be administered using standard drenching practices, simplifying integration into routine flock management.

No Wool Withholding Period
Maintains wool quality and market access with no withholding requirement.

Whole-Flock Control
Supports strategic mob treatments to reduce reinfestation risk and improve long-term lice control outcomes.

Suitable for All Ages
Safe for lambs, hoggets, ewes, and rams, including animals not suitable for topical treatment.

Flexolt Product Information

• Active Constituent:
  • Monepantel 25 mg/mL (AAD – Amino-Acetonitrile Derivative class)

• Dosage:
  • 1 mL per 10 kg liveweight (oral drench)
  • Use standard drenching equipment; ensure accurate weight estimation.

• Administration:
  • Oral administration only
  • Suitable for lambs, hoggets and adult sheep
  • Integrates easily into routine drench programmes

• Pack Sizes:
  • 5 L
  • 20 L

• Withholding Periods:
  • Meat: 14 days
  • Milk: Do not use in lactating ewes producing milk for human consumption

• Export Slaughter Interval (ESI):
  • 21 days

• Storage:
  • Store below 30°C
  • Protect from light
  • Do not freeze

• APVMA Approval Number:
  • 69407

Freight & Delivery Responsibility

Once goods have been dispatched from Hills Farm Supplies, they are carried at the purchaser’s risk.

While we take care to ensure all orders leave in good condition:

We are not liable for loss, damage, or delays caused during transit

Any claims relating to freight must be made with the carrier

Transit insurance is available upon request and is recommended for higher value orders.

How does Flexolt work to control lice?

Flexolt contains monepantel, a systemic AAD-class molecule that targets the nematode-specific MPTL-1 receptor family. Once administered orally, the active ingredient circulates through the bloodstream, reaching lice as they feed. This creates whole-body coverage, delivering knockdown without relying on fleece penetration, jetting technique or external application. This mechanism makes Flexolt effective on both shorn and unshorn sheep.

When should Flexolt be used for best flock-wide lice control?

Flexolt is most effective when used as a whole-mob treatment, ensuring all sheep receive a dose on the same day to prevent reinfestation. It is particularly valuable where shearing timing is restricted or when treating unshorn lambs that cannot be backlined. Flexolt can be aligned with routine drenching events to minimise labour and maintain a closed lice cycle, supporting long-term eradication programmes.

Can Flexolt be used in conjunction with other drenches or flock treatments?

Yes. Flexolt can be incorporated into standard drench schedules, provided rotational parasite management principles are followed. It should not be mixed with other products in the same drench applicator but can be administered during the same handling session. Because it uses a unique resistance-breaking mode of action, Flexolt is particularly useful in flocks with declining efficacy to pyrethroids, neonicotinoids and insect growth regulators.