Deworming Dos and Don'ts Chart
Deworming Dos and Don'ts
The biggest mistake made deworming a horse is using only ivermectin wormers. If you only use one type of chemical class your horse can become tolerant, and your worming schedule will be ineffective. Below is a great chart used to describe the different Drug classes for wormers and why they are used.
| Month | Active Ingredient | Product Names | Parasites Affected |
| Jan-Feb | Pyrantel | Strongid Paste, Pyrantel Exodus | Small Strongyles, Large Strongyles, Pinworms, Roundworms, Bots, Ascarids, Hairworms, Threadworms, Tapeworms |
| Mar-Apr | Benzimidazole | Safe-Guard, Anthelcide EQ, Panacur | Small Strongyles, Large Strongyles, Pinworms, Threadworms, Roundworms |
| May-Jun | Ivermectin | DuramaMectin, Durvet Ivermectin, Zimectrin Gold, Equimax, Quest Gel | Bots, Large/Small Strongyles, Bloodworms, Ascarids, Threadworms, Pinworms, Hairworms, Lungworms, Large Mouth Stomach Worms |
| Jul-Aug | Pyrantel | Strongid Paste, Pyrantel Exodus | Small Strongyles, Large Strongyles, Pinworms, Roundworms, Bots, Ascarids, Hairworms, Threadworms, Tapeworms |
| Sep-Oct | Benzimidazole | Safe-Guard, Anthelcide EQ, Panacur | Small Strongyles, Large Strongyles, Pinworms, Threadworms, Roundworms |
| Nov-Dec | Ivermectin | DuramaMectin, Durvet Ivermectin, Zimectrin Gold, Equimax, Quest Gel | Bots, Large/Small Strongyles, Bloodworms, Ascarids, Threadworms, Pinworms, Hairworms, Lungworms, Large Mouth Stomach Worms |
This chart was made by HorseSaddleShop for informative purposes only. You always want to consult your Veterinarian before treating your horse. In some cases, your Vet will come up with a rotational worming schedule directed especially for your born, as they will know the risks for parasites in your area.
Some prevention to parasites can be made by cleaning manure out of pasture frequently, as well as feeding your horses from a feeder rather than the ground.
Here are some factors that can result in a higher risk of parasites for your horse: