Halagon 0.5 mg/ml Oral Solution

from £104.23 ex VATfrom £125.08 inc VAT

Type: POM-V

PLEASE NOTE: A prescription issued by a UK registered vet (MRCVS) is required before this item can be dispatched.

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Product Description

Indicated for use in newborn calves:

  • Prevention of diarrhoea due to diagnosed Cryptosporidium parvum infection, in farms with history of cryptosporidiosis. Administration should start in the first 24 to 48 hours of age.
  • Reduction of diarrhoea due to diagnosed Cryptosporidium parvum infection. Administration should start within 24 hours after the onset of diarrhoea.

In both cases, the reduction of oocysts excretion has been demonstrated.

Dosage & Administration

For oral use in calves after feeding.

The dosage is: 100 μg of halofuginone / kg body weight (bw) / once a day for 7 consecutive days, i.e. 4 ml of HALAGON / 20 kg bw / once a day for 7 consecutive days.

However, in order to make the HALAGON treatment easier, a simplified dosage scheme is proposed:

  • 35 kg < calves ≤ 45 kg: 8 ml of HALAGON once a day during 7 consecutive days
  • 45 kg < calves < 60 kg: 12 ml of HALAGON once a day during 7 consecutive days

For smaller or higher weights, a precise calculation should be performed (4 ml/20 kg).

To ensure a correct dosage, an appropriate metering pump for administration of ‘HALAGON’ is included.

  1. Screw the metering pump on the bottle.
  2. Remove the protector cap from the nozzle.
  3. If the metering pump is used for the first time (or hasn’t been used for a few days), carefully pump till a drop of solution is formed on top of the nozzle.
  4. Restrain the calf and insert the nozzle of the metering pump into the calves mouth.
  5. Pull the trigger of the metering pump completely for release of a dose that equals 4 ml of solution. Pull twice or three times, respectively, for administration of the desired volume (8 ml for calves of 35 – 45 kg and 12 ml for calves of 45 – 60 kg, respectively).
  6. Put the protector cap back on the nozzle.

The consecutive treatment should be done at the same time each day. Once the first calf has been treated, all the forthcoming new-born calves must be systematically treated as long as the risk for diarrhoea due to C. parvum persists.


Meat and offal: 13 days.

Data Sheet

To read the full data sheet, please click the link below

Halagon 0.5 mg/ml Oral Solution

Delivery & Returns

With the Farmacy business moving from West Sussex to Cheshire over the Christmas and New Year break, we will be closed from midday on Friday 22nd December. Nothing will then be dispatched from that date until 2nd January 2024.

This makes it more important than ever to plan your ordering to ensure you are covered. For last delivery dates for Pre-Christmas delivery click here.





Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£0 - £149.99



£150 - £299.99



£300 - £449.99



£450 or more



Delivery to United Kingdom only

Please note there is a small excess for despatch to Highlands and Islands and Isle of Wight as governed by your postcode.

  1. To keep our prices as low as possible, we do not hold stock of most products. We order stock from our wholesaler at 4.30 each day, so any orders received after this time will not be ordered until the following day. 
  2. Orders placed on a Thursday or Friday that have refrigerated items included will not be dispatched until the following Monday to ensure that the items are delivered to you under controlled conditions. This means that you should receive these items on a Tuesday by 12pm.
  3. We do not offer a Saturday or Sunday delivery service.
  4. Standard and Priority costs apply to the UK mainland only.
  5. Delivery to Scottish Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs - this is dependent on your postcode. Full details can be found by clicking the link below.
  6. Customers who arrange to collect from Warnham should not arrive before 12pm.
  7. We are no longer able to ship to Northern Ireland due to extra administrative costs since January 2021. Any orders placed online will be cancelled and refunded.

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
Home Delivery

UK mainland delivery from £8.00

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