The Right Start

Start every deworming program with Power-Dose®.

Most dewormers kill adult small stongyles. Some dewormers kill encysted small strongyles in some of their stages. The ingredient in Safe-Guard® Power-Dose® is the ONLY one FDA approved to treat all stages of encysted small strongyles.


Small Strongyles, Big Problem

  • The small strongyle is a parasite that resides in the large intestine of the horse, usually in large numbers... expand
  • It has a 3-stage life cycle, but unlike many worms it can do something in its larval stage that creates a huge danger to horses. Under certain (common) conditions, it can bury itself in the wall of the large colon and “encyst”. When it does, it is hard to kill and even harder to detect.
  • Encysted small strongyles:
    • Are undetectable in routine fecal examinations
    • Usually don’t visibly affect the horse until he becomes ill
    • Can survive the effects of most common dewormers
  • Experts consider them the #1 nematode problem in horses today.
  • They can account for up to 90% or more of a horse’s worm burden (and 75% of them may be
  • Encysted small strongyles can cause severe clinical signs and even death when thousands to millions of the fourth stage larvae (L4) emerge simultaneously from the intestinal wall.
  • The resulting damage to the intestinal mucosa can show up in the horse as:
    • Listlessness, weakness
    • Weight loss
    • Anorexia
    • Recurring colic
    • Diarrhea
    • Peripheral edema (swelling)
    • Death
    • In less severe cases, horses may exhibit decreased performance, poor food utilization, and a dull hair coat

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Three Chemical Compounds

Only Safe-Guard® Power-Dose® treats all stages of encysted small strongyles.