Just one dose of **QUEST (moxidectin)** or **QUEST PLUS (moxidectin/praziquantel)** Gel treats and controls encysted small strongyles, bots and roundworms. "QUEST PLUS":https://www.wpvs.net/itemdetail/PFI2203 contains an additional active ingredient for efficacy against tapeworms._One syringe of QUEST or QUEST PLUS now treats up to 1,500 pounds. Both dewormers remain the same trusted formulations. Use a scale or weight tape prior to each deworming to help ensure an accurate dose for your horse._"Learn More":https://www.zoetisus.com/products/horses/quest-horse-dewormer/index.aspx