An experimental model of acute gastric ulcer was reproduced in 24 dogs, according to the procedure: deviced by Le Veen. Animals were grouped into 3 equal series of 8 dogs each. One of the series was used as control and the other 2 were treated with a norepinephrine solution ( at different concentrations and during different times) in a topic, endogastric -way  in an attempt to arrest the bleeding. lt was proved that, at a 16 mg/lt concentration, the drug gives a number of survivors which is higher than that of the non-treated animals, without undersirable side-effects.

En 24 perros se reproduce un m.odelo experimen tal de úlceras gástricas agudas, según procedimiento ideado por LeVeen. Se dividen los animales en 3 series iguales de ocho. Una se deja como testigo y a las 2 restantes se les trata con solución de noradrenalina (a concentraciones y durante tiempos diferentes) en forma tópica, endogástrica, para intentar cohibir el sangrado. Se comprueba que a una concentración de 16 mg/lt, la droga condiciona un mayor número de sobrevivientes que en los animales no tratados, sin efectos colaterales indeseables.