“…The following are clinical examples: (a) The author and others (44, 45) have observed the suppression of recurrent epistaxis in hemorrhagic telangiectasia, both cyclically in relation to the menses and following the oral and parenteral administration of estrogens. (b) Massive spontaneous epistaxis not responding to anterior and posterior packing, vitamin C, vitamin K, ice packs, thrombin and fibrin foam, subsequently controlled by intravenous estrogens (44, 47); following the arrest of epistaxis by estrogen therapy, the open vessel still can be seen even though no blood is escaping (47, 48); concomitantly, there is a change in the color of the congested cyanotic vessels to a more normal hue. (c) A colleague (56) has repeatedly been able to terminate bouts of hemoptysis in a patient with mitral stenosis by intravenous administration of Premarin.…”