Strongid Paste is a pale yellow to buff paste containing 43.9-percent w/w pyrantel pamoate in an inert vehicle. Each 20-ml syringe contains 3.6 grams pyrantel base in 23.6 grams (20 mL) paste. Each milliliter contains 180 milligrams pyrantel base as pyrantel pamoate. The safe and effective horse and foal dewormer that is easy to use. 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.