Contraindications
See 'In-Depth Answers' for detailed results.
diabetes mellitus; may alter metabolic control; dose reduction of hypoglycemic medications or insulin may be required [4]
high-fat diet and/or administration of orlistat with a meal very high in fat; increased risk of gastrointestinal events [4]
hyperoxaluria or calcium oxalate nephrolithiasis, history; levels of urinary oxalate may increase following treatment with orlistat [4]
liver injury, severe (with hepatocellular necrosis or acute hepatic failure) has been rarely reported; some cases have resulted in liver transplant or death [4]
oxalate nephrolithiasis and nephropathy with renal failure have been reported; monitoring recommended in those at risk for renal impairment [4]
reduced absorption of cyclosporine; separate administration by at least 3 hours; monitoring recommended [4]
reduced absorption of fat soluble vitamins; separate administration by at least 2 hours [4]
substantial weight loss; increased risk of cholelithiasis [4]
report suspected adverse reactions to the United States Food and Drug Administration at 1-800-FDA-1088 or www.fda.gov/medwatch [4]