Desmopressin the name of synthetic Vasopressin: www.antiaging-systems.com/52-desmopressin is a pituitary hormone is best known for controlling water balance in the body. But Vasopressin also improves attention, retention and recall, (both short-term and long-term) and it is noted to enhance short-term memory in normal adults as well as in those with age-associated memory impairment.