The osmolality-sensitive taurine channel in flounder erythrocytes is strongly stimulated by noradrenaline under hypo-osmotic conditions.

Stimulation of flounder erythrocytes by noradrenaline under isosmotic conditions (330 mosmol kg-1) and physiological Na+ concentration (113 mmol l-1) caused swelling of the cells. The EC50 of this cell swelling was 0.65 µmol l-1 noradrenaline.