Treatment
Successful treatment requires the use of a dewormer that kills both large and small strongyles. Many small strongyles are resistant to certain medications, including several in the benzimidazole family. Some common dewormers that have been used with success against large and small strongyles include pyrantel pamoate, ivermectin, and oxibendazole. Owners should consult a veterinarian about the best deworming medications, dosages, and schedules for all horses on a farm.