<prompt> All of the following statements about amiloride are true EXCEPT:It antagonises the action of aldosteroneIt is the drug of choice for the treatment of lithium induced diabetes insipidusIt decreases calcium loss in the urineIt is more potent than triamterene  <response>: Amiloride acts by blocking epithelial Na channels. It has no effect on aldosterone receptors. It is more potent than triamterene. It decreases Ca2 loss in the urine It is the drug of choice for lithium induced DIas it blocks entry of Li ions through ENac channels. 