Another name for antidiuretic hormone is

Arginine Vasopressin

Explanation:

Antidiuretic hormone, also called ADH or vasopressin arginine, is produced in the hypothalamus gland and secreted by the neurohypophysis.  This hormone acts on the kidneys, increasing the body's water retention and ion concentration and thereby raising blood pressure.

ADH deficiency leads to the clinical condition known as diabetes insipidus. The opposite happens when its production is stimulated, usually affecting people with heart failure, affecting overstimulated hormone receptors.

that is wrong, its not thymus.