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OrlistatOver the counter
Pronounced OR-li-stat
Brand names: Xenical, Alli
Type: Lipase inhibitor (weight loss medicine) · All Digestive (GI) Medicines
What Orlistat is used for
- Weight management in obesity
- Weight management in overweight patients with risk factors
◆ Kidney note
Rarely, oxalate buildup from fat malabsorption can injure the kidneys — caution in people with kidney disease or kidney stone history.
Common side effects
- Oily or loose stools
- Gas with discharge
- Urgent bowel movements
- Reduced absorption of fat-soluble vitamins
Important cautions
- Blocks absorption of fat-soluble vitamins and some medicines such as transplant drugs — a multivitamin is usually advised at a separate time
- Rare cases of liver and kidney injury (from oxalate) have been reported — report yellowing skin or reduced urination
How it comes
Capsules. This guide lists forms only — it never lists strengths or doses.
Toxicity lists: Orlistat also appears on Medicines That Can Harm the Kidneys and Medicines That Can Harm the Liver.
Related medicines — Digestive (GI) Medicines
Condition guides on MedicalVideos.com
- Obesity & Weight Management — videos, articles and guides · medicines for obesity & weight management
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.