No, Normace 10mg Tablet does not cause excessive urination (loss of water through urine). The use of Normace 10mg Tablet may not affect normally functioning kidneys. However, damage to the kidneys may occur when Normace 10mg Tablet is given with a diuretic (water pill, a medicine that increases the urine output). In such a case, either the diuretic should be discontinued or its dose should be reduced. If you have severe heart failure or your kidneys are already affected then there is a risk of kidney failure. However, timely and appropriate treatment can reverse the damage caused to kidneys.