Lubiprostone
DrugLubiprostone is a chloride channel activator approved by the Food and Drug Administration for the treatment of chronic constipation. A randomized, double-blind, parallel-group, placebo-controlled study evaluating the effect of lubiprostone on gastric function showed slowed gastric emptying and increased small bowel and colonic transit time. Peak plasma concentration was shown to be around 1.14 hours, with a majority of the drug excreted in the urine within 48 hours.