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Dosing Guidelines and Best Practise

DOSING GUIDELINES

Wormers are a chemical whose supply is controlled by legislation and the Veterinary Medicines Inspectorate.  Any individual who sells wormers has to be a qualified person with the Animal Medicines Trade Regulatory Authority.

There are a number of safety requirements that must be adhered to in the storage, handling, dosing and disposal of wormers.  It is important to know what you are giving your horse, how to do it safely and what possible side effects there are.

The withdrawal periods of each chemical need to be known due to the introduction of horse passports and the requirements relating to horse meat entering the food chain. These are now listed against each product in our product catalogue.

WORMING BEST PRACTISE

  • The horse’s mouth must be free of food.
  • The horse’s weight should be accurately determined to ensure the correct dose is given.
  • Read entire package insert before use.
  • Lock the plunger at the correct weight.
  • The syringe should be placed between the back and front teeth and the paste deposited at the back of the horse’s tongue.
  • Once paste is given immediately elevate the horse’s head for a few seconds to ensure that the wormer is swallowed.
  • If the horse is difficult to worm then use an easy wormer.
  • Some wormers have an adverse affect on cats and dogs.  Any spilled wormers must be cleaned from the floor and used syringes put in a bin with a lid.
  • Keep out of reach from children.
  • Wash hands after use.
  • Use protective gloves.
  • Avoid direct contact with eyes.
  • Do not smoke or drink whilst handling worming products.
  • Store wormers below 25 degrees C.
  • Ivermectin and Moxidectin are TOXIC to fish and other aquatic animals including tortoises and turtles.  Do not use if horses are grazing fields with ponds, streams, ditches etc.
  • Some adult strains of worms are resistant to benzimidazole wormers.  It is advisable to test for resistance before using either Panacur or Telmin as you routine summer wormer.
  • Mares with foals should be grazed on pasture that has not been grazed by horses for the previous 12months, or at least from Jan to end May.  This will help reduce the roundworm challenge to the foal.
  • Equitape and Equest Pramox are the only wormers with a manufacturers recommendation to stable after worming.  This is to reduce the impact on pasture from the praziquantel chemical.  This is also contained in Equimax and Eqvalan Duo.