Zoetis Equine Quest Plus Gel Dewormer to Control Both Encysted Small Strongyles and Tapeworms in a Single Dose! 0.4 oz (11.6 grams) = One Dose Each Syringe Treats Up To 1,250 lb Horse Contains 20 mg Moxidectin and 125 mg Praziquantel Easy-to-use applicator Long Lasting: Suppresses Production of Small Strongyle Eggs for 84 Days