Generic Aldactone is used for treating swelling and fluid retention in patients with congestive heart failure, cirrhosis or kidney problems (nephrotic syndrome). It is also used for treatment of high blood pressure. It may also be used to treat or prevent low blood potassium.
Generic Protonix is used to treat erosive esophagitis (damage to the esophagus from stomach acid), and other conditions involving excess stomach acid such as Zollinger-Ellison syndrome.