NCIt definition : A bicyclic fatty acid derived from prostaglandin E1 and a chloride channel activator
with laxative activity. Upon intake, lubiprostone specifically binds to and activates
the type 2 chloride channel (ClC-2) in the apical membrane of the gastrointestinal
epithelium. This produces an efflux of chloride ions, thereby drawing water into the
gastrointestinal lumen. The resulting increased amounts of intestinal fluid soften
the stool, increase motility, and improve bowel movements.;