Pyrantel horse wormer is an oral paste for the removal and control of mature infections of large strongyles (Strongylus vulgaris, S. edentatus, S. equinus); small strongyles; pinworms (Oxyuris equi); and large roundworms (Parascaris equorum) in horses and ponies. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. It contains 43.9% w/w pyrantel pamoate for horses. Contents of each syringe will treat up to 1,200 lb. body weight. Apple flavor. Pyrantel pamoate.