Mechanism of Action
See 'In-Depth Answers' for detailed results.
oral-local: Orlistat is a reversible inhibitor of intestinal lipases. In the lumen of the stomach and intestine, it bonds covalently with active serine residues of gastric and pancreatic lipases, making them unavailable to hydrolyze dietary triglycerides into absorbable fatty acids and monoglycerides. Because undigested triglycerides are not absorbed, a calorie deficit may occur, having a positive effect on weight control. Systemic absorption is minimal and is not needed for activity[5].
At therapeutic doses, orlistat inhibits dietary fat absorption by approximately 30%[5].
Postprandial, cholecystokinin plasma concentrations were decreased after multiple doses of orlistat in two studies; however, two other studies have shown no difference from placebo[5]. No clinically significant changes in gallbladder motility, bile composition or lithogenicity, or colonic cell proliferation rate, and no clinically significant reductions of gastric emptying time or gastric acidity were observed [5]. In addition, no effects on plasma triglyceride levels or systemic lipases were observed [5].
Mechanism of ActionSee 'In-Depth Answers' for detailed results.oral-local: Orlistat is a reversible inhibitor of intestinal lipases. In the lumen of the stomach and intestine, it bonds covalently with active serine residues of gastric and pancreatic lipases, making them unavailable to hydrolyze dietary triglycerides into absorbable fatty acids and monoglycerides. Because undigested triglycerides are not absorbed, a calorie deficit may occur, having a positive effect on weight control. Systemic absorption is minimal and is not needed for activity[5].At therapeutic doses, orlistat inhibits dietary fat absorption by approximately 30%[5].Postprandial, cholecystokinin plasma concentrations were decreased after multiple doses of orlistat in two studies; however, two other studies have shown no difference from placebo[5]. No clinically significant changes in gallbladder motility, bile composition or lithogenicity, or colonic cell proliferation rate, and no clinically significant reductions of gastric emptying time or gastric acidity were observed [5]. In addition, no effects on plasma triglyceride levels or systemic lipases were observed [5].
การแปล กรุณารอสักครู่..
