PyrantelCare Daily Dewormer easy-to-feed pellets, is a concentrated equine anthelmintic that provides continuous protection against over 31 of the most common species and stages of equine parasites, including: large and small strongyles, ascarids and pinworms. Medicated for continuous feeding for the prevention of Stongylus vulgaris larval infestation in horses. Top dress the palatable medicated pellets on your horse's grain each day to provide continuous protection. PyrantelCare has double strength (2.11% pyrantel tartrate)in an easy-to-feed pellet that is palatable. This product can be fed to horses of all ages, including foals, mares at any stage of pregnancy or lactation and breeding stallions. Stallion fertility is not affected by the use of PyrantelCare dewormer 2.11%. Daily dewormers are intended as a barrier against parasites and therefore used every day as compared to "purge dewormers," which are administered weeks or months apart.