Antiarrhythmic effect of H-2 antihistamines.

cyanosis with great dyspnea is the outstanding clinical feature . . . A yellow serous fluid fills the air passages in such quantities that it may drip from the mouth of the living patient when the stretcher is tilted head downwards. Death in this stage may occur at any time from the first to the fourth or fifth day. . . . Secondary infection of the Imniclniil.il passages and lungs may develop, causing purulent bronchitis, hronchopnenmonia, pleurisy, or even empyema and gangrene of thelung. These may be fatal in the second or third week."