Diabetes Insipidus, Nephrogenic, 2, Autosomal, also known as diabetes insipidus, nephrogenic, autosomal, is related to nephrogenic diabetes insipidus and diabetes insipidus, nephrogenic, 1, x-linked. An important gene associated with Diabetes Insipidus, Nephrogenic, 2, Autosomal is AQP2 (Aquaporin 2). The drugs Lithium carbonate and Amiloride have been mentioned in the context of this disorder. Affiliated tissues include kidney and liver, and related phenotypes are polydipsia and hypernatremia