n a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparin
The substance which slows insulin's reaction in the blood is a protamine derived from the sperm of the handsome, hardy rainbow trout.
They used two drugs which worked equally well: toluidine blue, a tissue stain, and protamine sulfate, a protein compound.
But before it got back into the patient, where the clotting factor was necessary once more, the doctors gave it another injection, this time of protamine, to counteract the .