Q-DRENCH 1LT SHEEP WORMER ZOETIS 503160
- Active ingredient
- 40 g/L levamisole hydrochloride + 37.5 g/L closantel + 25 g/L albendazole + 1 g/L abamectin
- Controls
- Target Parasites & AnimalsQ-Drench is registered for use in sheep (ewes, wethers, rams and lambs over 6 weeks of age and 10 kg bodyweight). It is not registered for us...
- Suitable for
- Sheep
- Withholding period
- Refer to the current registered product label for withholding periods. — always confirm on the registered label
Q-drench is a short acting, 4 way combination sheep drench.
Q-drench contains 4 actives with 4 different modes of action at 4 fully effective doses.
Q-drench is the ideal choice for strategic treatments such as weaning, pre-lambing, quarantine, primer and exit drenches which rely on the highest possible efficacy to achieve their aims.
Using Q-drench as part of or within a season drench rotation will increase sheep productivity and help delay the development of parasites resistance to existing drenches.
Features:
4 actives with 4 different modes of action in every dose
Ideal for strategic drenching programs
Delays development of resistant worm strains
Made in Australia for Australian conditions
Cost effective, broad spectrum worm control
Dosage and Administration:
Shake well before use.
Administer orally:
Check accuracy of the drench equipment before and during use. A representative sample of animals should be
weighed before treatment:
Dose the mob to the heaviest animal by liveweight in each group (ewes, wethers, rams, lambs). Do not
Underdose:
Where there is a large variation in size within the group, dose rate should be based on the label directions for each weight
Range:
Drafting into two or more lines may be appropriate to avoid excessive overdosing.
Restraints:
DO NOT USE in female sheep which are producing or may in the future produce milk or milk products for human consumption.
DO NOT USE in lambs under 6 weeks of age or 10 kg bodyweight.
Precautions:
Exercise care in handling weak, pregnant and young animals to avoid unnecessary stress. Avoid yarding animals off-feed overnight, and ensure animals have access to water when yarded prior to drenching. Recommended dose should not be exceeded, except under veterinary supervision.
Active Constituents:
40.0 g/L Levamisole hydrochloride
37.5 g/L Closantel
25.0 g/L Albendazole
1.0 g/L Abamectin
Withholding Periods:
Meat: 28 days.
Milk: Do not use in female sheep which are producing, or may in the future produce, milk or milk products for human consumption.
Active Ingredient: 40 g/L levamisole hydrochloride + 37.5 g/L closantel + 25 g/L albendazole + 1 g/L abamectin
Chemical Schedule: S6
APVMA Reg. No: 56573
For use on: Sheep
Also sold as: Nilverm, Levasole, Ripercol
Refer to the current registered product label for withholding periods.
Always read the current registered product label before use. Withholding periods must be observed before slaughter, milking, or egg collection. The label supplied with the product is the legal document and takes precedence. If in doubt, contact TGRM on (07) 5482 1692 or the manufacturer directly.
Target Parasites & Animals
Q-Drench is registered for use in sheep (ewes, wethers, rams and lambs over 6 weeks of age and 10 kg bodyweight). It is not registered for use in female sheep producing or likely to produce milk for human consumption.
As a 4-way combination drench, Q-Drench provides broad-spectrum control of the major roundworm species affecting sheep in Australia, including barber's pole worm (Haemonchus contortus), black scour worm, brown stomach worm, and other economically significant gastrointestinal nematodes. Its four-mode-of-action formulation is designed to achieve the highest possible kill rates, including against worm populations with resistance to single or double-active drenches.
Dose rate & administration
1 mL per 5 kg as a single oral drench. Shake well before use. Minimum 10 kg and 6 weeks of age. Do not re-treat within 28 days. Do not use in female sheep producing milk for human consumption.
| Liveweight (kg) | Dose (mL) | Head/1 L bottle |
|---|---|---|
| 20 | 4.0 | 250 |
| 30 | 6.0 | 166 |
| 40 | 8.0 | 125 |
| 50 | 10.0 | 100 |
| 60 | 12.0 | 83 |
| 70 | 14.0 | 71 |
| 80 | 16.0 | 62 |
| 80+ | 1 mL/5 kg | — |
- Weigh a representative sample. Dose to the heaviest animal in each group (ewes, wethers, rams, lambs treated separately).
- Draft into two or more weight lines where large variation exists.
- Calibrate drenching equipment before and during use.
Withholding period
Meat: 28 days. Do not use in female sheep producing or likely to produce milk for human consumption. ESI: not established — contact Zoetis on 1800 814 883 before slaughter for export.
Always read the current registered product label before use. Dose rates and withholding periods on this page are provided as a guide only. The registered label supplied with the product is the legal document and takes precedence. If in doubt, contact TGRM on (07) 5482 1692 or the manufacturer directly.
Tips for Best Results
- Weigh animals accurately — never estimate liveweight. Underdosing is a leading driver of drench resistance on Australian sheep properties, and with levamisole (the clear drench class) in particular, even modest underdosing can significantly reduce efficacy against susceptible worm populations.
- Levamisole resistance management: Levamisole (clear drench) is one of the older drench classes and resistance has been confirmed on many Australian properties, particularly in barber's pole worm. Using Q-Drench as a combination product — rather than relying on levamisole alone — helps slow the development of resistance across all four active classes. WormBoss recommends rotating between drench classes with different modes of action and using combination products strategically.
- Refugia management: According to WormBoss principles, leaving a proportion of the mob (low-risk animals such as older, well-conditioned ewes) undrenched helps maintain a population of worms in refugia — worms that have not been exposed to drenching pressure. This slows the spread of resistant worm genetics on your property. Talk to your vet or animal health advisor about identifying which animals in your mob are candidates for refugia-based management.
- Store Q-Drench according to label directions, away from direct sunlight and out of reach of children and animals. Keep accurate treatment records including the date, product used, dose administered, withholding period, and the animals treated — this is essential for both resistance monitoring and food safety compliance.
Always read the label and follow directions for use. The registered label is the legal document governing use of this product.
Download the Safety Data Sheet for this product:
Download SDS (PDF)Required for safe handling and storage. Keep on-site per WHS regulations.
Common Questions
What animals is Q-Drench registered for?
Q-Drench is a sheep wormer. Please refer to the product label for full details on which classes of sheep it is suitable for, and any restrictions.
What parasites does Q-Drench target?
Q-Drench is a broad spectrum drench containing 4 active ingredients with different modes of action to help control a range of internal parasites in sheep. For specific parasite coverage details, check the registered product label.
How do I work out the correct dose?
Dosing instructions are detailed on the product label and must be followed carefully. Always shake the drench well before use, check your equipment is accurate, and weigh a representative sample of animals. For specific dose rates and any questions about application, consult the label or contact TGRM on (07) 5482 1692, or speak with your veterinarian or agronomist.
Can I use Q-Drench to help manage worm resistance?
Yes. Using Q-Drench as part of a planned drench rotation with other products of different modes of action is a good resistance-management strategy. Its 4-way combination with different active ingredients is designed to help delay the development of resistant worm strains when used as part of a strategic drenching program.
What do I need to know before drenching?
Always read and follow the registered product label and the Safety Data Sheet (SDS) before use. Handle animals carefully to avoid stress, ensure they have access to water when yarded, and do not yard them off-feed overnight. If you have any concerns about individual animals or specific circumstances, consult your veterinarian. For further advice, contact TGRM on (07) 5482 1692.
Do you ship this product Australia-wide?
Yes, this product ships Australia-wide via road courier. It is too large or heavy for Australia Post. Call us on (07) 5482 1692 if you have any questions about delivery to your area.
Can I Click & Collect from Gympie?
Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.



