The drugs presently given to NDI patients help manage the symptoms of NDI, but do not cure the disorder. Since there is no known cure for inherited NDI, the person with this form of NDI will have it the rest of their life. However, with the proper type and combination of drugs an NDI patient can reduce the volume of water lost through urination and therefore the amount of water he or she needs to drink to replace the lost water. The danger with stopping the drug regime is that the NDI patient will have to greatly increase his intake of water to compensate for the water lost through urination. This could place great strain on the urinary system, leading to bladder extension and, though rarely, kidney failure. This is especially true for children. The best course of action is to stick with the drug regime given by your doctor and keep in contact with her if any adjustments in the regime are called for.