For the removal and control of mature infections of large strongyles small strongyles pinworms and large roundworms in horses. Administer as a single oral dose of 3mg pyrantel pamoate per pound of body weight orally.Help protect your horse from pesky pests with Durvet Pyrantel Paste Apple Flavor Horse Dewormer, 23.6-gm tube! This paste is formulated for oral use only and helps remove and control mature infections caused by small strongyles, long strongyles, pinworms and large roundworms in both horses and ponies. You can use this dewormer on a variety of neighing neighbors, including pregnant mares up to 1 month before their anticipated foaling date, nursing mares 10 days after foaling and to foals who are at least 2 months old. The paste is easy to feed and comes in a delicious apple flavor your horse will love!