Pyrantel Pamoate.Strongid (pyrantel pamoate) paste is a potent equine wormer containing pyrantel. Strongid paste removes and controls most common and damaging internal parasites including bloodworms, small strongyles, etc. Strongid paste is a pale-yellow-to-buff paste containing 43.9% w/w pyrantel pamoate in an inert vehicle. Each syringe contains 3.6 grams pyrantel base in 23.6 g (20 ml) paste.