Chanelle Zerofen 10% Drench 10L

Zerofen 10% Drench 10L

£259.00 ex VAT£310.80 inc VAT


You will be required to complete a POM-VPS/NFA-VPS form for this product at checkout to enable completion of your order.

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Product Description

Zerofen 10% is a broad spectrum anthelmintic for the control of mature and developing immature forms of the following major species of roundworms in cattle and sheep. Zerofen has an ovicidal effect on nematode eggs.

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.

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.

Dosage & Administration


  • Give as an oral drench at the rate of 7.5 mg fenbendazole per kg bodyweight (approximately 1 ml per 13 kg bodyweight).
  • Cattle over 400 kg should be given a further 5 ml for each additional 65 kg bodyweight.


  • Give as an oral drench at the rate of 5 mg fenbendazole per kg bodyweight (approximately 1 ml per 20 kg bodyweight).
  • Sheep over 80 kg should be given a further 0.5 ml for each additional 10 kg bodyweight.

To ensure administration of a correct dose, body weight should be determined as accurately as possible; accuracy of the dosing device should be checked



  • Meat: 21 days
  • The product must not be used in sheep producing milk for human consumption.


  • Meat: 14 days
  • Milk: 132 hours from the last treatment.

Data Sheet

To read full data sheet please click the link below

Zerofen 10% Drench

Delivery & Returns




Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£100 +



Delivery to United Kingdom only

Please note there is a small excess of £7.50 for dispatch to Highlands and Islands and Isle of Wight and £12 to Guernsey and Jersey as governed by your postcode.

  1. We are unable to ship to Northern Ireland. Any orders placed online will be cancelled and refunded.
  2. Orders are typically dispatched the day after they are received. For example, orders placed on Monday, will be dispatched on Tuesday. Orders received on Friday will not be dispatched until Monday subject to stock availability.
  3. Orders placed on a Thursday or Friday that have refrigerated items included will be dispatched on Sunday for delivery before 12pm on the following Monday to ensure that the items are delivered to you under controlled conditions. 
  4. We do not offer a Saturday or Sunday delivery service.
  5. Standard and Priority costs apply to the UK mainland only. Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs as governed by your postcode. Full details can be found by clicking the link below.
  6. Standard Delivery (non-refrigerated products) guarantees delivery by 6pm
  7. Priority Delivery (refrigerated products) guarantees delivery by 12pm.
  8. We are unable to dispatch refridgerated products to Highlands and Islands addresses. Full details can be found by clicking the link below. 

For full delivery details click here 

Faulty Goods Returns

In the unlikely event that you receive faulty or damaged goods please call 01306 628215 within 72 hours of receipt of your goods. Please have your order reference to hand. You will be asked to provide evidence of the damaged goods if damaged in transit.

Restricted Goods Returns

We are unable to offer refunds on the following products.

  • Animal medicines - general & vaccines
  • Refrigerated/temperature sensitive products

Please contact the Farmacy Team before sending any returns on 01306 628215.

For full returns details click here

Product Species

  • Cattle - Dairy
    Cattle - Dairy
  • Cattle - Beef
    Cattle - Beef
  • Sheep
Home Delivery

UK mainland delivery from £12.00

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