Our Schedule In New England is:
January/February - 1 tube Oxibendazol or Fenbendazole
March/April - 1 tube Ivermectin/Praziquantel Paste
May/June - 1 tube Generic Purchase Pyrantel Pamoate
July/August - 1 tube Oxibendazol or Fenbendazole
September/October - 1 tube Ivermectin/Praziquantel Paste
November/December - 1 tube Generic Purchase Pyrantel Pamoate
The five most common dewormer ingredients found in horse wormers are: Febendazole, Ivermectin, Moxidectin, Praziquantel, and Pyrantel.
Febendazole
controls large strongyles, encysted early- and late-third-stage and fourth-stage cyathostome larvae, small strongyles, pinworms, and ascarids.
Ivermectin
controls large strongyles, small strongyles, pinworms, ascarids, hairworms, large-mouth stomach worms, bots, lungworms, and intestinal threadworms.
Praziquantel
controls tapeworms.
Pyrantel Pamoate and Tartrate
control large strongyles, small strongyles, pinworms, ascarids, and tapeworms when double-dosed.
You will need to establish a regular worming schedule to keep your horse healthy. Worms can cause malnutrition that can lead to weight loss. Worm your horse with an over the counter dewormer at least every 2 months. Rotate brands every other worming due to the fact that each brand of dewormer kills a variety of different kinds of worms.