Panacur Paste Dewormer is an apple-cinnamon flavored paste that is safe for foals, pregnant mares and stallions. For the control of large and small strongyles, pinworms and ascarids. Contains 100 mg fenbendazole per gm. Each 25 gm syringe treats up to 1,100 lbs.For foals and weanlings less than 18 mos of age, use double the dose on a per pound basis. For control of encysted early 3rd stage, late 3rd stage and 4th stage small strongyle larvae, and 4th stage large strongyle larvae, use the Panacur PowerPac. PowerPac is the only FDA-approved treatment for all stages of encysted small strongyles.