Contains one 11.4g pyrantel syringe. One syringe will treat up to 600kg horse. For the treatment & control of adult infections of large & small redworms, ascarids & pinworms found in the gastro-intestinal tracts of horses ponies & other equines. This product also treats tapeworm. This product is safe for horse & ponies over 1 month of age including suckling foals, Pregnant mares & stallions. During the grazing season all horses over 8 months of age should be wormed with Pyratape P every 4-6 weeks. ALWAYS CONSULT YOUR VET IF YOU HAVE ANY QUESTIONS OR CONCERNS.