Controlling intestinal worms in horses is generally an easy process with the use of anthelmintics (wormers). There are a number of products available, but it is important to understand that all effective products will consist of one, or a combination of four different active ingredients (chemicals). The four main chemical groups that are used to treat worms in horses are;
- Macrocyclic lactones (mectin based) – broad spectrum protection (not tapeworms)
- Benzimidazoles – generally used for rotation worming
- Praziquantel – specifically for tapeworm control
- Tetrahydropyrimides – narrow spectrum wormer
Different products may be formulated using one or a combination of these ingredients and developed into liquids, gels, pastes or granules.
Controlling worms is essential for the health of your horse. The best way to do this is using a combination of a number of methods including:
- Regular and appropriate worming program including a rotational wormer (changing the active ingredients/chemicals used)
- Paddock management and hygiene, ie rotating paddocks, allowing rest periods, picking up faeces and managing pasture.
- Doing faecal egg counts to determine if worms are present or being controlled
For more information on intestinal worms in horses please look in the vet-n-pet DIRECT Help Centre for a number of relevant articles.
Originally published in My Pet Magazine Issue 16, Spring 2018.
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