Strongid C 2X Daily dewormer (10 lb pail) contains 9.6 gms pyrantel tartrate per lb (double the strength of Strongid C). Strongid C 2X Daily dewormer is intended as a concentrated size for convenient handling, storage and transportation. It is medicated for feeding on a continuous basis for the control of large and small strongyles, pinworms and ascarids. Strongid C 2X Dailey dewormer should be administered for entire period that your horse is at risk to internal parasites. Each 10lb pail should last the average 1,000 lb horse 80 days. Strongid C 2X Daily dewormer may be administered to foals as soon as consistent intake of grain mix is occurring (generally between 2-3 mos of age) and it may be used in mares at any stage of pregnancy or lactation. Daily dewormers help prevent internal parasite build up and reduce pasture build up of parasite eggs.