Abstract
It was often seen that after the administration of quinine the lowering of blood pressure induced by intravenous injection of colloid was remarkably diminished and that a secondary rise in blood pressure occasionally occurred. This phenomenon is probably due to the fact that the hypertensive action of epinephrine, which is excreted from adrenal glands compensatorily for the hypotensive effect of nucleotid released. from blood cells, is significantly potentiated by quinine.
