Virbac Weanerguard 500ml



  • Contains moxidectin – the most potent ML

  • Broad spectrum roundworm control

  • At least 21 days persistent activity against barber’s pole worm

  • Up to 21 days persistent activity against small brown stomach worm

  • Ideal for highly contaminated pastures

  • Contains 6-in-1 vaccine


The treatment of lambs from 15 to 37kg liveweight to aid in:

  • Worm control

  • Boost protection against clostridial diseases and cheesy gland


  • Contains moxidectin

    Moxidectin is the most potent member of the macrocyclic lactone (ML) family of drenches, meaning it can kill worms resistant to ivermectin and abamectin.

  • Contains 6 in 1 vaccine

    CYDECTIN WEANERGUARD is a convenient combination of moxidectin and five clostridial disease and cheesy gland antigens. It is ideal at weaning when a drench and vaccine “booster” are needed at the same time, and particularly for lambs and lighter hoggets between 15 and 37 kg.

  • Broad spectrum parasite control

    CYDECTIN WEANERGUARD is highly effective against all major internal parasites that are susceptible to ML drench, including gastrointestinal roundworms and large lungworm. These worms can reduce overall productivity, especially in young animals. Weight gains and wool growth can be reduced signifi cantly. CYDECTIN WEANERGUARD also controls itch mite and nasal bot.

  • Persistent activity

    CYDECTIN WEANERGUARD prevents reinfection with barber’s pole worm (Haemonchus contortus) for not less than 21 days, with Ostertagia circumcincta for up to 21 days and Trichostrongylus colubriformis and Cooperia curticei for not less than 7 days. Persistent activity is important when there is significant pasture contamination, as it can delay the need for subsequent drenching.

  • Unselenised

    Excess selenium can cause toxicity issues in sheep. Where sheep are receiving sufficient amounts of selenium, it may be better to use an unselenised drench. If selenium supplementation via a drench is required, CYDECTIN WEANERGUARD 6 in 1 vaccine and wormer with selenium and vitamin B12 can be recommended.

  • Safety

    CYDECTIN WEANERGUARD has a wide margin of safety when used as recommended, and is readily accepted by lambs and weaners. It can be safely used concurrently with other treatments including mineral supplements and fluke treatments.


  • Moxidectin 2.5g/L


  • C. pseudotuberculosis 1.0 U/mL – Cheesy gland

  • CI. perfringens type D 5.0 IU/mL – enterotoxaemia

  • CI. chauvoei EP 0361??IU/mL - blackleg

  • CI. septicum 2.5 IU/mL – malignant oedema

  • CI. novyi type B 3.5 IU/mL – black disease

  • CI. tetani 2.5 IU/mL – tetanus


  • CYDECTIN WEANERGUARD must be injected subcutaneously.

  • For animals 15-25 kg liveweight give 2mL subcutaneously

  • For animals 26-31 kg liveweight give 2.5mL subcutaneously

  • For animals 32-37 kg liveweight give 3mL subcutaneously

  • For animals above 37kg administer at the rate of 1mL/12.5 kg or use CYDECTN® EWEGUARD 6 in 1 vaccine and wormer for sheep at recommended dose rate.


  • Meat: 28 days

  • Milk: DO NOT USE in lactating ewes where milk or milk products may be used for human consumption.

  • ESI: 28 days


Store between 2ºC and 8ºC. Refrigerate. DO NOT FREEZE. Protect from light. Once opened contents should be used within 24hrs.


Liquid: 500mL

Servicing the Mitchell and Strathbogie Shire Victoria only including the following towns: Avenel, Broadford, Glenaroua, Kimore, Hilldene, Longwood, Mangalore, Nagambie, Puckapunyal, Seymour, Tallarook, Tyaak, Trawool, Yea and Whiteheads Creek.

A delivery and handling fee of $10 applies to all orders.


Can I still buy what I need from your Tallarook store?

Yes! We are still your local and independent Rural Supplies store. Please refer to trading hours if you wish to visit us in-store.

How long will it take for my products to arrive after I place my online order?

Shortly after your online order has been placed and confirmed, you will receive a call during business hours from our team to arrange a delivery date and time that best suits you.

How much is delivery?

A delivery and handling fee of $10 applies to all orders. 

Can I track my order?

Yes! When you complete your online order you will receive an email confirmation with your order details.

How does your CLICK & COLLECT service work?

Our Click & Collect service (available at checkout online) allows you to pick up your order from the shed. Please allow a minimum of 24 hours for your order to be ready. Our team will contact you once your order is ready to be picked up.

Can I make a purchase online if I live outside of the Mitchell and Strathbogie Shires?

Unfortunately No. Not unless previously discussed and arranged with Tallarook Rural Supplies.

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