Excel Roundworm De-Wormer Liquid is an effective wormer for dogs and cats and is safe for puppies and kittens over 6 weeks old. Pets love the taste making it easy to administer by adding to food or giving directly to pet. Effective against large roundworms (toxocara canis and toxascaris leonina). 

Active Ingredients: each teaspoon (5 ml.) contains 250 mg piperazine base as piperazine citrate. Inactive Ingredients: caramel color, flavor, glycerine, methylparaben, potassium sorbate, sugar, vanillin, water.