Home Not For Collies Or Shepherds Kills Hook, Round, Whip And Tape Worms Heartworm Preventive Paste Wormer For Easy Administration Apple Flavor 2 Year Shelf Life Ivermectin was originally designed for horse, but numerous dog owners use it. This is ideal for those who have numerous dogs. 1 tube will last awhile.IvermectinSKU: IVERMECTIN$5.50PriceQuantityAdd to Cart