Desmopressin

Part of speech: noun

Definitions

1. A synthetic analogue of vasopressin used in medicine to manage conditions like diabetes insipidus and for surgical procedures
2. A man-made version of a natural hormone that aids in increasing levels of water retention in the body, useful for specific medical conditions
3. A pharmaceutical agent that mimics a hormone, often prescribed to treat excessive urination and enuresis in patients

Etymology: Desmopressin is a coinage of modern pharmacology, built from two pieces that date to very different eras. The first, "desmo-", is a combining form drawn from Greek "desmos," meaning "bond, fastening, chain," which comes from a verb meaning "to bind." Scientists use it in compounds where it signals a band or ligament, so the name points to a molecule that was engineered from a natural model rather than found whole in nature. The second piece, "-pressin," is borrowed from the name of the hormone vasopressin, the natural compound the drug is modeled on. That hormone earned its name from its effect on blood vessels, which it constricts, raising blood pressure. Desmopressin keeps the hormone's antidiuretic action on the kidneys while lacking its vessel-constricting effect, which is why it is used to reduce urine output rather than to raise blood pressure.

Synonyms: DDAVP, vasopressin analog, antidiuretic hormone, synthetic vasopressin, desmopressin acetate