The intravenous administration of 2.5 to 3 mg. of C 10 diiodide or of 2 to 2.75 mg. of C 10 dibromide, over a period of five seconds to two minutes, produced complete or nearly complete relaxation ...

The bis-trimethylammonium decane dibromide (Syncurine) used in this investigation was generously provided by Dr. D. S. Searle, medical director, and Dr. E. J. deBeer, director of research ...