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Levamisole 20L WSD



WSD LEVAMISOLE is a broad spectrum treatment for roundworm parasites of sheep and cattle.

Type of Preparation

WSD LEVAMISOLE is a solution for oral use as a drench containing 27.5g/L Levamisole- an imidazothiazole compound. It is commonly

known as a 'clear drench'.


Cattle, Sheep, Lambs and Goats:

Mature and immature stages of worm parasites susceptible to levamisole:

Barber's pole worm (Haemonchus spp), stomach hair worm (Trichostrongylus axei), black scour worms (Trichostrongylus spp), small brown

stomach worm (Ostertagia spp), small intestinal worm (Cooperia spp), thin necked intestinal worm (Nematodirus spp) hookworm

(Bunostomum trigonocephalum), intestinal threadworm (Strongyloides spp), large bowel and nodule worms (Oesophagostomum spp), large

mouthed bowel worm (Chabertia ovina), and large lung worm (Dictyocaulus spp).

Dairy Cattle & Milking sheep: Do NOT use in cattle or sheep producing milk for human consumption


Always refer to the label. Separate into different weight classes if there is a large variation in age and weight.

Levamisole may be toxic. It is recommended that sheep or cattle should NOT be fasted before the administration of any drench containing


Sheep and lambs: Dose at the rate of 1ml per 4kg body weight.

Cattle: Dose at the rate of 10ml per 45kg body weight

Advice on use


·WSD LEVAMISOLE is a reliable broad-spectrum oral drench for cattle of all ages.

·It is often best administered to adult cattle with a drenching hook.


·WSD LEVAMISOLE is a broad-spectrum treatment which is highly effective against mature and immature worms of susceptible

strains of sheep parasites.

·It is highly effective against and can be used to treat infestations by barbers pole worm (Haemonchus contortus) and thin-necked

intestinal worm (Nematodirus spp).

·The use of WSD Levamisole may be indicated in strategic programs to reduce contamination of pastures when testing has shown it

to be effective against other local worm parasites. It is advisable to test efficacy before relying on levamisole as a strategic


·Adult worms of resistant strains of gastrointestinal worm parasites of sheep may not be removed by treatment and this may require

the later use of an effective strategic treatment from the WSD range of drenches.

·Levamisole is not effective against tapeworms.

·Resistance to levamisole is widespread among some species of gastrointestinal parasites on Australian sheep farms.

·The repeated use of any drench is likely to result in the emergence of resistance and therefore,

regular testing for efficacy is recommended.

Withholding periods

Milking sheep or dairy cows/goats: Do not give during pregnancy or lactation to animals which are

producing or may produce milk for human consumption.

This information was correct at time of printing, however Withholding Periods and Export Slaughter

Interval (ESI) can change. If you are concerned, please check with WSD for the latest information.

Meat withholding: 3 days

Export slaughter interval: 7 days

Milk withholding: Not for use in dairy cattle or sheep producing milk for human consumption

Wool withholding: Nil

Shelf Life

36 months from the date of manufacture

Sizes Available

1 litre Twin-Neck, 5 litre Backpack or Quad, 20 litre Drum

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