Zerofen 2.5%
Introduction

Chanelle Vet UK Ltd
Address: CBX11 West Wing
382-390 Midsummer Boulevard
Milton Keynes, Bucks MK9 2RG
Telephone: 01908 843636
Fax: 01908 847401
Website: www.chanellevetuk.com
Company name: Chanelle Animal Health Limited
7 Rodney Street
Liverpool
L1 9HZ
Tel & Fax: 01568 750432
Website: www.chanellegroup.ie
Presentation
A pale pink smooth suspension for oral administration. Each ml of Zerofen 2.5% contains 25 mg fenbendazole.
Uses
Zerofen 2.5% is a broad spectrum anthelmintic for the control of mature and developing immature forms of the major species of roundworms in sheep and cattle. Zerofen has an ovicidal effect on nematode eggs.
In sheep it is effective against benzimidazole susceptible strains of the following parasites:
Gastro-intestinal roundworms: Ostertagia, Haemonchus, Trichostrongylus, Nematodirus, Cooperia, Oesophagostomum, Chabertia, Bunostomum and Strongyloides species.
Lungworms: Dictyocaulus filaria.
It is usually effective for the control of tapeworms, Moniezia spp, in sheep. The product may be useful for the control of Trichuris in sheep.
In cattle it is effective against the following parasites:
Gastro-intestinal roundworms: Ostertagia, Cooperia, Trichostrongylus, Nematodirus, Haemonchus, Oesophagostomum, Bunostomum, Strongyloides and Trichuris species.
Lungworms: Dictyocaulus viviparus.
It is usually effective against inhibited larvae of Ostertagia species in cattle.
Dosage and administration
Assess bodyweight as accurately as possible before calculating the dosage. Shake container before use.
Sheep
Give as an oral drench at the rate of 5 mg fenbendazole per kg bodyweight (1 ml per 5 kg bodyweight).
Sheep | |
Bodyweight | Dose |
Up to 15 kg | 3 ml |
16–25 kg | 5 ml |
26–35 kg | 7 ml |
36–50 kg | 10 ml |
51–65 kg | 13 ml |
66–75 kg | 15 ml |
Over 75 kg give 2 ml per 10 kg. |
Cattle
Give as an oral drench at the rate of 7.5 mg fenbendazole per kg bodyweight (3 ml per 10 kg bodyweight).
Cattle | |
Bodyweight | Dose |
50 kg | 15 ml |
100 kg | 30 ml |
150 kg | 45 ml |
200 kg | 60 ml |
250 kg | 75 ml |
300 kg | 90 ml |
350 kg | 105 ml |
Over 350 kg give 15 ml per 50 kg. |
Contra-indications, warnings, etc
Do not use in sheep producing milk for human consumption.
Withdrawal periods
Animals must not be slaughtered for human consumption during treatment. Sheep may be slaughtered for human consumption only after 21 days from the last treatment. Cattle may be slaughtered for human consumption only after 14 days from the last treatment. Milk for human consumption must not be taken during treatment. Milk for human consumption may be taken from cows only after 96 hours from the last treatment.
Operator warnings
Direct contact with skin should be kept to a minimum.
Wear suitable protective clothing including impermeable rubber gloves. Wash hands after use.
Environmental warnings
Do not contaminate ponds, waterways or ditches with product or used containers. Unused product and containers should be disposed of in accordance with any guidance from an appropriate waste regulation authority.
General precautions
For animal treatment only.
Keep out of the reach of children.
Pharmaceutical precautions
Do not freeze. Intensive use or misuse of anthelmintics can give rise to resistance. To reduce this risk dosing programmes should be discussed with your veterinary adviser.
Legal category
POM-VPS
Packaging Quantities
Standard packs – 1L, 2.5L, 5L, 10L
Flexi packs – 1L, 2.5L, 5L.
Further information
Fenbendazole belongs to the Benzimidazole (1-BZ) class of anthelmintics.
Zerofen 2.5% can be safely used at the recommended dose rate during pregnancy and lactation.
Marketing authorisation number
Vm 11990/4000.