Diabetes Insipidus (also known as frequent urination) is a rare condition. It occurs when the kidneys cannot conserve water. It is not the same as Diabetes Mellitus or Type 2 Diabetes.
Vasopressin is a good supplemental hormone to take to try and control this condition. The pituitary gland releases natural Vasopressin, which is an antidiuretic, into your system when you become dehydrated. Sufferers of Diabetes insipidus have a lack of this hormone, so by supplementing this, the Vasopressin levels in your body become higher.