Definition of ADH (antidiuretic hormone)
ADH (antidiuretic hormone): A peptide molecule
that is released by the
pituitary gland at the base of the brain after being made
nearby (in the
hypothalamus). ADH has an antidiuretic action that prevents
the production
of dilute urine (and so is antidiuretic).
A syndrome of
inappropriate
secretion of ADH may occur in
association with
oat-cell lung cancer, pancreatic cancer, prostate cancer,
and Hodgkin's
disease as well as a number of other disorders. The inappropriate
secretion of ADH results in the inability to put out
dilute urine,
perturbs fluid (and electrolyte) balance, and causes
nausea, vomiting,
muscle cramps, confusion and convulsions. ADH also
can stimulate
contraction of arteries and capillaries. ADH is also known
as vasopressin.
Source:
MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=6982
Last Editorial Review: 10/21/1998
Drug Medical Dictionary of Terms by Letter