6.08 Gram, Horse Health Ivermectin Equine Dewormer, Kills 35 Species & Stages Of Worms & Bots Combined, Kills All 3 Stages Of The 2 Most Common Bot Species, Use 6 Times Per Year For Broad Spectrum Parasite Control, For Use On All Horses Including: Broodmares, Stallions & Foals, No Age Restrictions, 1 Syringe Deworms Horses Up To 1,250 LB, Multi-Dose Syringe Treats Up To 3,750 LB.