Strongid-P Granules 76.736% w/w Further information Strongid-P Granules are well tolerated in horses and donkeys, including young foals of over four weeks of age, pregnant mares, and stallions, provided the recommendations are followed. Pyrantel embonate is the recognised UK name for the active principle in Strongid-P Granules and is synonymous with pyrantel pamoate. Pyrantel embonate is also available as Strongid-P Paste and Strongid Caramel, presented in a disposable plastic syringe for direct oral administration.